TY  - CONF
AU  - Popović, Dejan
AU  - Topalović, Ivan
AU  - Dedijer Dujović, Suzana
AU  - Konstantinović, Ljubica
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/4669
AB  - The assessment of the motor performance is an essential component of rehabilitation of humans with a disability. The wearable system is a preferable solution compared to the laboratory-based instrumentation for the clinical use. We integrated a system which combines array electrodes over the muscles of interest connected to the 24-channel digital amplifier and the shoe insole with five robust pressure transducers and one inertial measurement unit per leg. The system sends signals wirelessly to a computer. The graphical interface is simple for usage and simple to interpret. The EMG patterns (muscle activities) and gait events are synchronized by the software. The EMG patterns are determined by cubic spline interpolation of data from 24-pads over the muscle. The gait events are estimated by fuzzy logics applied on the thresholds from signals coming from the insole. The system was tested and accepted by the therapist as a useful and easy clinical tool.
PB  - Springer Nature Switzerland AG
C3  - Converging Clinical and Engineering Research on Neurorehabilitation III : Proceedings of the 4th International Conference on NeuroRehabilitation (ICNR2018), October 16–20, 2018, Pisa, Italy
T1  - Wearable system for the gait assessment in stroke patients
DO  - 10.1007/978-3-030-01845-0
UR  - https://hdl.handle.net/21.15107/rcub_dais_4669
ER  - 

@conference{
author = "Popović, Dejan and Topalović, Ivan and Dedijer Dujović, Suzana and Konstantinović, Ljubica",
year = "2019",
abstract = "The assessment of the motor performance is an essential component of rehabilitation of humans with a disability. The wearable system is a preferable solution compared to the laboratory-based instrumentation for the clinical use. We integrated a system which combines array electrodes over the muscles of interest connected to the 24-channel digital amplifier and the shoe insole with five robust pressure transducers and one inertial measurement unit per leg. The system sends signals wirelessly to a computer. The graphical interface is simple for usage and simple to interpret. The EMG patterns (muscle activities) and gait events are synchronized by the software. The EMG patterns are determined by cubic spline interpolation of data from 24-pads over the muscle. The gait events are estimated by fuzzy logics applied on the thresholds from signals coming from the insole. The system was tested and accepted by the therapist as a useful and easy clinical tool.",
publisher = "Springer Nature Switzerland AG",
journal = "Converging Clinical and Engineering Research on Neurorehabilitation III : Proceedings of the 4th International Conference on NeuroRehabilitation (ICNR2018), October 16–20, 2018, Pisa, Italy",
title = "Wearable system for the gait assessment in stroke patients",
doi = "10.1007/978-3-030-01845-0",
url = "https://hdl.handle.net/21.15107/rcub_dais_4669"
}

Popović, D., Topalović, I., Dedijer Dujović, S.,& Konstantinović, L.. (2019). Wearable system for the gait assessment in stroke patients. in Converging Clinical and Engineering Research on Neurorehabilitation III : Proceedings of the 4th International Conference on NeuroRehabilitation (ICNR2018), October 16–20, 2018, Pisa, Italy
Springer Nature Switzerland AG..
https://doi.org/10.1007/978-3-030-01845-0
https://hdl.handle.net/21.15107/rcub_dais_4669

Popović D, Topalović I, Dedijer Dujović S, Konstantinović L. Wearable system for the gait assessment in stroke patients. in Converging Clinical and Engineering Research on Neurorehabilitation III : Proceedings of the 4th International Conference on NeuroRehabilitation (ICNR2018), October 16–20, 2018, Pisa, Italy. 2019;.
doi:10.1007/978-3-030-01845-0
https://hdl.handle.net/21.15107/rcub_dais_4669 .

Popović, Dejan, Topalović, Ivan, Dedijer Dujović, Suzana, Konstantinović, Ljubica, "Wearable system for the gait assessment in stroke patients" in Converging Clinical and Engineering Research on Neurorehabilitation III : Proceedings of the 4th International Conference on NeuroRehabilitation (ICNR2018), October 16–20, 2018, Pisa, Italy (2019),
https://doi.org/10.1007/978-3-030-01845-0 .,
https://hdl.handle.net/21.15107/rcub_dais_4669 .

TY  - CONF
AU  - Dedijer Dujović, Suzana
AU  - Vidaković, Aleksandra
AU  - Đorđević, Olivera
AU  - Gavrilović, Marica
AU  - Rosić, Stefan S.
AU  - Popović, Dejan
AU  - Topalović, Ivan
AU  - Konstantinović, Ljubica
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1934148218305483
UR  - https://dais.sanu.ac.rs/123456789/4626
AB  - Objective: To determine if conventional rehabilitation program combined with functional electrical stimulation (FES) applied to the ankle dorsiflexor muscles during walking through a foot drop stimulator (FDS) would influence activation of tibialis anterior (TA) and improve walking ability in individuals with stroke-related drop foot. Design: Case series Setting: Post-acute rehabilitation hospital.  Participants: Individuals with stroke-related drop foot. Interventions: All study subjects received the conventional stroke rehabilitation program 5 days a week, 1h a day combined with walking while FES system based on multi-pad electrode applied, for 30min, during 4 weeks. The following outcome measurements were taken at baseline and at post-treatment.  Main Outcome Measures: Surface electromyography (sEMG), gait speed using 10 Meter Walk Test (10MWT), Fugl-Meyer assessment (FMA) and Berg Balance Scale (BBS).  Results: The analyzed recorded EMG signal showed an improvement in both amplitude and frequency spectrum, which indicates an improvement in muscle power of TA treated with FES therapy. Mean increase in 10MWT was 38.7% (P <.05). The initial FMA score increased from 22.9±2.4 to 28.8±3.5 (P < .01) and BBS score increased from 36.6±7.4 to 42.0±8.5 (P < .05).  Conclusions: Our data confirm that FES therapy using multi-pad electrode combined with conventional rehabilitation significantly increase muscle recruitment and improve recovery of functional locomotion in patients with stroke-related drop foot.  Level of Evidence: Level IV
PB  - Elsevier
C3  - PM&R: the journal of injury, function, and rehabilitation American Academy of Physical Medicine and Rehabilitation
T1  - Poster 89: The Effects of Foot Drop Stimulator on the Parameters of Functional Locomotion in Subjects with Stroke-Related Foot Drop
SP  - S35
VL  - 10
IS  - 9
DO  - 10.1016/j.pmrj.2018.08.114
UR  - https://hdl.handle.net/21.15107/rcub_dais_4626
ER  - 

@conference{
author = "Dedijer Dujović, Suzana and Vidaković, Aleksandra and Đorđević, Olivera and Gavrilović, Marica and Rosić, Stefan S. and Popović, Dejan and Topalović, Ivan and Konstantinović, Ljubica",
year = "2018",
abstract = "Objective: To determine if conventional rehabilitation program combined with functional electrical stimulation (FES) applied to the ankle dorsiflexor muscles during walking through a foot drop stimulator (FDS) would influence activation of tibialis anterior (TA) and improve walking ability in individuals with stroke-related drop foot. Design: Case series Setting: Post-acute rehabilitation hospital.  Participants: Individuals with stroke-related drop foot. Interventions: All study subjects received the conventional stroke rehabilitation program 5 days a week, 1h a day combined with walking while FES system based on multi-pad electrode applied, for 30min, during 4 weeks. The following outcome measurements were taken at baseline and at post-treatment.  Main Outcome Measures: Surface electromyography (sEMG), gait speed using 10 Meter Walk Test (10MWT), Fugl-Meyer assessment (FMA) and Berg Balance Scale (BBS).  Results: The analyzed recorded EMG signal showed an improvement in both amplitude and frequency spectrum, which indicates an improvement in muscle power of TA treated with FES therapy. Mean increase in 10MWT was 38.7% (P <.05). The initial FMA score increased from 22.9±2.4 to 28.8±3.5 (P < .01) and BBS score increased from 36.6±7.4 to 42.0±8.5 (P < .05).  Conclusions: Our data confirm that FES therapy using multi-pad electrode combined with conventional rehabilitation significantly increase muscle recruitment and improve recovery of functional locomotion in patients with stroke-related drop foot.  Level of Evidence: Level IV",
publisher = "Elsevier",
journal = "PM&R: the journal of injury, function, and rehabilitation American Academy of Physical Medicine and Rehabilitation",
title = "Poster 89: The Effects of Foot Drop Stimulator on the Parameters of Functional Locomotion in Subjects with Stroke-Related Foot Drop",
pages = "S35",
volume = "10",
number = "9",
doi = "10.1016/j.pmrj.2018.08.114",
url = "https://hdl.handle.net/21.15107/rcub_dais_4626"
}

Dedijer Dujović, S., Vidaković, A., Đorđević, O., Gavrilović, M., Rosić, S. S., Popović, D., Topalović, I.,& Konstantinović, L.. (2018). Poster 89: The Effects of Foot Drop Stimulator on the Parameters of Functional Locomotion in Subjects with Stroke-Related Foot Drop. in PM&R: the journal of injury, function, and rehabilitation American Academy of Physical Medicine and Rehabilitation
Elsevier., 10(9), S35.
https://doi.org/10.1016/j.pmrj.2018.08.114
https://hdl.handle.net/21.15107/rcub_dais_4626

Dedijer Dujović S, Vidaković A, Đorđević O, Gavrilović M, Rosić SS, Popović D, Topalović I, Konstantinović L. Poster 89: The Effects of Foot Drop Stimulator on the Parameters of Functional Locomotion in Subjects with Stroke-Related Foot Drop. in PM&R: the journal of injury, function, and rehabilitation American Academy of Physical Medicine and Rehabilitation. 2018;10(9):S35.
doi:10.1016/j.pmrj.2018.08.114
https://hdl.handle.net/21.15107/rcub_dais_4626 .

Dedijer Dujović, Suzana, Vidaković, Aleksandra, Đorđević, Olivera, Gavrilović, Marica, Rosić, Stefan S., Popović, Dejan, Topalović, Ivan, Konstantinović, Ljubica, "Poster 89: The Effects of Foot Drop Stimulator on the Parameters of Functional Locomotion in Subjects with Stroke-Related Foot Drop" in PM&R: the journal of injury, function, and rehabilitation American Academy of Physical Medicine and Rehabilitation, 10, no. 9 (2018):S35,
https://doi.org/10.1016/j.pmrj.2018.08.114 .,
https://hdl.handle.net/21.15107/rcub_dais_4626 .

TY  - JOUR
AU  - Popović Maneski, Lana
AU  - Topalović, Ivan
AU  - Jovičić, Nenad
AU  - Dedijer, Suzana
AU  - Konstantinović, Ljubica
AU  - Popović, Dejan B.
PY  - 2016
UR  - https://dais.sanu.ac.rs/123456789/15999
AB  - Transcutaneous activation of muscles with electrical stimulation has limited selectivity in recruiting paralyzed muscles in stroke patients. However, the selectivity could be increased by the application of smaller electrodes and their appropriate positioning on the skin. We developed a method for selecting the appropriate positions of the stimulating electrodes based on electromyography (EMG). The EMG activity maps were estimated from signals recorded with two electrode arrays and two 24-channel wearable amplifiers positioned on the nonparetic and paretic forearms. The areas where the difference between the EMG maps obtained from the nonparetic and paretic arms was significant were identified as the stimulation sites. The stimulation was applied through array electrodes with magnetic holders and two wearable stimulators with four output channels each. The measures of functionality included joint angles measured with goniometers (hand opening) and grasp force measured with a multi-contact dynamometer (grasping). The stimulation protocol comprised co-activation of flexors and extensors to stabilize the wrist joint and prevent pronation/supination.
PB  - Elsevier
T2  - Medical Engineering and Physics
T1  - Stimulation map for control of functional grasp based on multi-channel EMG recordings
SP  - 1251
EP  - 1259
VL  - 38
IS  - 11
DO  - 10.1016/j.medengphy.2016.06.004
UR  - https://hdl.handle.net/21.15107/rcub_dais_15999
ER  - 

@article{
author = "Popović Maneski, Lana and Topalović, Ivan and Jovičić, Nenad and Dedijer, Suzana and Konstantinović, Ljubica and Popović, Dejan B.",
year = "2016",
abstract = "Transcutaneous activation of muscles with electrical stimulation has limited selectivity in recruiting paralyzed muscles in stroke patients. However, the selectivity could be increased by the application of smaller electrodes and their appropriate positioning on the skin. We developed a method for selecting the appropriate positions of the stimulating electrodes based on electromyography (EMG). The EMG activity maps were estimated from signals recorded with two electrode arrays and two 24-channel wearable amplifiers positioned on the nonparetic and paretic forearms. The areas where the difference between the EMG maps obtained from the nonparetic and paretic arms was significant were identified as the stimulation sites. The stimulation was applied through array electrodes with magnetic holders and two wearable stimulators with four output channels each. The measures of functionality included joint angles measured with goniometers (hand opening) and grasp force measured with a multi-contact dynamometer (grasping). The stimulation protocol comprised co-activation of flexors and extensors to stabilize the wrist joint and prevent pronation/supination.",
publisher = "Elsevier",
journal = "Medical Engineering and Physics",
title = "Stimulation map for control of functional grasp based on multi-channel EMG recordings",
pages = "1251-1259",
volume = "38",
number = "11",
doi = "10.1016/j.medengphy.2016.06.004",
url = "https://hdl.handle.net/21.15107/rcub_dais_15999"
}

Popović Maneski, L., Topalović, I., Jovičić, N., Dedijer, S., Konstantinović, L.,& Popović, D. B.. (2016). Stimulation map for control of functional grasp based on multi-channel EMG recordings. in Medical Engineering and Physics
Elsevier., 38(11), 1251-1259.
https://doi.org/10.1016/j.medengphy.2016.06.004
https://hdl.handle.net/21.15107/rcub_dais_15999

Popović Maneski L, Topalović I, Jovičić N, Dedijer S, Konstantinović L, Popović DB. Stimulation map for control of functional grasp based on multi-channel EMG recordings. in Medical Engineering and Physics. 2016;38(11):1251-1259.
doi:10.1016/j.medengphy.2016.06.004
https://hdl.handle.net/21.15107/rcub_dais_15999 .

Popović Maneski, Lana, Topalović, Ivan, Jovičić, Nenad, Dedijer, Suzana, Konstantinović, Ljubica, Popović, Dejan B., "Stimulation map for control of functional grasp based on multi-channel EMG recordings" in Medical Engineering and Physics, 38, no. 11 (2016):1251-1259,
https://doi.org/10.1016/j.medengphy.2016.06.004 .,
https://hdl.handle.net/21.15107/rcub_dais_15999 .

TY  - JOUR
AU  - Ignjatović, Nenad
AU  - Ninkov, Petar
AU  - Ajduković, Zorica
AU  - Konstantinović, Vitomir
AU  - Uskoković, Dragan
PY  - 2005
UR  - https://dais.sanu.ac.rs/123456789/8952
AB  - Composite biomaterials, like calciumphosphate/bioresorbable polymer, offer excellent potential for reconstruction and reparation of bone tissue defects induced by different sources. In this paper synthesis of calciumphosphate/poly-DL-lactide-co-glycolide (BCP/DLPLG) composite biomaterial formed as filler and blocks was studied. BCP/DLPLG composite biomaterial was produced in the form of spherical granules of BCP covered by a DLPLG layer, average diameter of 150-250 mu m. By cold and hot pressing of granules at up to 10000 kg/cm(2), blocks with fine distribution of phases and porosity up to 3% were obtained. Characterization was performed by wide-angle X-ray structural analysis (WAXS), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), infrared spectroscopy (IR), and mechanical properties by defining the compressive strength. In vitro citotoxicity research was carried out on cellular cultures of fibroblasts of human (MRC5) and mouse (L929). In vivo research was performed in two steps. Reparatory ability of BCP/DLPLG in mice was examined in the first step, and then bone tissue reconstruction possibilities on 10 patients in the next step. In vitro tests showed very good fibroblast adhesion and non-citotoxicity of the composite. A material is considered non-cytotoxic if the cell survival is above 50%, and in our case it was 90%. In vivo research on mice indicated high level of reparatory ability of this composite with formation of new bone and vascular tissue six weeks after reparation. Application of this composite for healing infrabone defects of patients showed a high level of osseous regeneration.
PB  - Durnten-Zurich : Trans Tech Publications Ltd.
T2  - Current Research in Advanced Materials & Processes
T1  - Biphasic calcium phosphate/poly-(DL-lactide-co-glycolide) biocomposite as filler and blocks for reparation of bone tissue
SP  - 519
EP  - 524
DO  - 10.4028/www.scientific.net/MSF.494.519
UR  - https://hdl.handle.net/21.15107/rcub_dais_8952
ER  - 

@article{
author = "Ignjatović, Nenad and Ninkov, Petar and Ajduković, Zorica and Konstantinović, Vitomir and Uskoković, Dragan",
year = "2005",
abstract = "Composite biomaterials, like calciumphosphate/bioresorbable polymer, offer excellent potential for reconstruction and reparation of bone tissue defects induced by different sources. In this paper synthesis of calciumphosphate/poly-DL-lactide-co-glycolide (BCP/DLPLG) composite biomaterial formed as filler and blocks was studied. BCP/DLPLG composite biomaterial was produced in the form of spherical granules of BCP covered by a DLPLG layer, average diameter of 150-250 mu m. By cold and hot pressing of granules at up to 10000 kg/cm(2), blocks with fine distribution of phases and porosity up to 3% were obtained. Characterization was performed by wide-angle X-ray structural analysis (WAXS), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), infrared spectroscopy (IR), and mechanical properties by defining the compressive strength. In vitro citotoxicity research was carried out on cellular cultures of fibroblasts of human (MRC5) and mouse (L929). In vivo research was performed in two steps. Reparatory ability of BCP/DLPLG in mice was examined in the first step, and then bone tissue reconstruction possibilities on 10 patients in the next step. In vitro tests showed very good fibroblast adhesion and non-citotoxicity of the composite. A material is considered non-cytotoxic if the cell survival is above 50%, and in our case it was 90%. In vivo research on mice indicated high level of reparatory ability of this composite with formation of new bone and vascular tissue six weeks after reparation. Application of this composite for healing infrabone defects of patients showed a high level of osseous regeneration.",
publisher = "Durnten-Zurich : Trans Tech Publications Ltd.",
journal = "Current Research in Advanced Materials & Processes",
title = "Biphasic calcium phosphate/poly-(DL-lactide-co-glycolide) biocomposite as filler and blocks for reparation of bone tissue",
pages = "519-524",
doi = "10.4028/www.scientific.net/MSF.494.519",
url = "https://hdl.handle.net/21.15107/rcub_dais_8952"
}

Ignjatović, N., Ninkov, P., Ajduković, Z., Konstantinović, V.,& Uskoković, D.. (2005). Biphasic calcium phosphate/poly-(DL-lactide-co-glycolide) biocomposite as filler and blocks for reparation of bone tissue. in Current Research in Advanced Materials & Processes
Durnten-Zurich : Trans Tech Publications Ltd.., 519-524.
https://doi.org/10.4028/www.scientific.net/MSF.494.519
https://hdl.handle.net/21.15107/rcub_dais_8952

Ignjatović N, Ninkov P, Ajduković Z, Konstantinović V, Uskoković D. Biphasic calcium phosphate/poly-(DL-lactide-co-glycolide) biocomposite as filler and blocks for reparation of bone tissue. in Current Research in Advanced Materials & Processes. 2005;:519-524.
doi:10.4028/www.scientific.net/MSF.494.519
https://hdl.handle.net/21.15107/rcub_dais_8952 .

Ignjatović, Nenad, Ninkov, Petar, Ajduković, Zorica, Konstantinović, Vitomir, Uskoković, Dragan, "Biphasic calcium phosphate/poly-(DL-lactide-co-glycolide) biocomposite as filler and blocks for reparation of bone tissue" in Current Research in Advanced Materials & Processes (2005):519-524,
https://doi.org/10.4028/www.scientific.net/MSF.494.519 .,
https://hdl.handle.net/21.15107/rcub_dais_8952 .

TY  - CONF
AU  - Ignjatović, Nenad
AU  - Nastasović, Aleksandra
AU  - Laninović, V
AU  - Onjia, Antonije
AU  - Miljković, Miroslav
AU  - Konstantinović, Vitomir
PY  - 2004
UR  - https://dais.sanu.ac.rs/123456789/2750
AB  - Bioresorbable barrier membranes have been widely used in dentistry and maxillofacial surgery. When the membranes are placed over bony defects and are closely adapted by the surrounding bone face, an environment that prevents invasion of competing non-osteogenetic cells from the overlying soft tissues can be created. The aim of the present study was to establish whether the production procedure of different polymeric and composite membranes affects their physicochemical properties. The physicochemical properties were examined by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), inverse gas chromatography (lGC) and tensile strength test (TST). The surface microstructure, dependent on the processing parameters, was perforated with smaller or larger pores. The dispersive component of the free surface energy decreased by adding bicalcium phosphate (BCP) to the polymer and, consequently, non-polar interactions with the surroundings became preferential.
C3  - Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia
T1  - Preparation and properties of polymeric and composite bioresorbable barrier membranes
SP  - 537
EP  - 542
DO  - 10.4028/www.scientific.net/MSF.453-454.537
UR  - https://hdl.handle.net/21.15107/rcub_dais_2750
ER  - 

@conference{
author = "Ignjatović, Nenad and Nastasović, Aleksandra and Laninović, V and Onjia, Antonije and Miljković, Miroslav and Konstantinović, Vitomir",
year = "2004",
abstract = "Bioresorbable barrier membranes have been widely used in dentistry and maxillofacial surgery. When the membranes are placed over bony defects and are closely adapted by the surrounding bone face, an environment that prevents invasion of competing non-osteogenetic cells from the overlying soft tissues can be created. The aim of the present study was to establish whether the production procedure of different polymeric and composite membranes affects their physicochemical properties. The physicochemical properties were examined by differential scanning calorimetry (DSC), scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), inverse gas chromatography (lGC) and tensile strength test (TST). The surface microstructure, dependent on the processing parameters, was perforated with smaller or larger pores. The dispersive component of the free surface energy decreased by adding bicalcium phosphate (BCP) to the polymer and, consequently, non-polar interactions with the surroundings became preferential.",
journal = "Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia",
title = "Preparation and properties of polymeric and composite bioresorbable barrier membranes",
pages = "537-542",
doi = "10.4028/www.scientific.net/MSF.453-454.537",
url = "https://hdl.handle.net/21.15107/rcub_dais_2750"
}

Ignjatović, N., Nastasović, A., Laninović, V., Onjia, A., Miljković, M.,& Konstantinović, V.. (2004). Preparation and properties of polymeric and composite bioresorbable barrier membranes. in Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia, 537-542.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.537
https://hdl.handle.net/21.15107/rcub_dais_2750

Ignjatović N, Nastasović A, Laninović V, Onjia A, Miljković M, Konstantinović V. Preparation and properties of polymeric and composite bioresorbable barrier membranes. in Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia. 2004;:537-542.
doi:10.4028/www.scientific.net/MSF.453-454.537
https://hdl.handle.net/21.15107/rcub_dais_2750 .

Ignjatović, Nenad, Nastasović, Aleksandra, Laninović, V, Onjia, Antonije, Miljković, Miroslav, Konstantinović, Vitomir, "Preparation and properties of polymeric and composite bioresorbable barrier membranes" in Progress in Advanced Materials and Processes, 5th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS 2003), Sep 15-19, 2003, Herceg Novi, Yugoslavia (2004):537-542,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.537 .,
https://hdl.handle.net/21.15107/rcub_dais_2750 .