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Dokument se učitava

ATUSS

VISER

Academy of Technical and Art Applied Studies

School of Electrical and Computer Engineering

Serbian

Borislav Đorđević

Obrazovanje

  • Magistarske studije: Univerzitet u Beogradu, Elektrotehnički fakultet, Elektrotehnika i računarstvo [1989-1992]
  • Doktorske studije: Univerzitet u Beogradu, Elektrotehnički fakultet, Elektrotehnika i računarstvo [1993-2003]
  • Osnovne akademske studije: Univerzitet u Beogradu, Elektrotehnički fakultet, Elektrotehnika i računarstvo [1984-1989]

Biografija

Borislav S. Đorđević je rođen 26. 04. 1964. godine u Pirotu (od oca Slavoljuba i majke Gordane). Osnovnu školu i gimnaziju završio je u Pirotu sa odličnim uspehom, sa Vukovom diplomom. Upisao je Elektrotehnički fakultet u Beogradu, odsek Elektronika, smer Elekronika, 1983. godine. Fakultet je završio u roku, 1989. godine sa prosečnom ocenom 8,70. Magistarsku tezu pod nazivom “POBOLjŠANjE PERFORMANSI SCSI DISKOVA NA RAČUNARIMA POD MS-DOS OPERATIVNIM SISTEMOM” odbranio je na Elektrotehničkom fakultetu u Beogradu, 30. decembra 1992. godine. Doktorsku disertaciju pod nazivom “KEŠIRANjE DISKOVA ZA CENTRALIZOVANE OPERATIVNE SISTEME” odbranio je na Elektrotehničkom fakultetu u Beogradu , 9. jula 2003. godine.

Reference

Monografija

  1. Bojan Škorić, Nikola Davidović, Slobodan Obradović, Borislav Đorđević, Valentina Timčenko, "Poređenje performansi nizova uparenih magnetnih diskova RAID 0, RAID 5 i RAID 50", 13TH INTERNATIONAL SCIENTIFIC CONFERENCE "CONTEMPORARY MATERIALS, Banja Luka, September 10-11, 2020. Bosnia and Herzegovina.

    http://15.ekonferencije.com/paper/view/5898

  2. Valentina Timčenko, Nikola Zogović, Borislav Đorđević, Miloš Jevtić, Approach to Assessing Cloud Computing Sustainability, Handbook of Integration of Cloud Computing, Cyber Physical Systems and Internet of Things, Springer, Cham, pp. 93 - 125, isbn: Print ISBN 978-3-030-43794-7 Online ISBN 978-3-030-43795-4, 2020., https://doi.org/10.1007/978-3-030-43795-4_4

    M13


  3. Nikola Davidovic, Borislav Đorđević, Valentina Timcenko, Slobodan Obradovic, Bojan Skoric, "RAID 0 on paired magnetic disk arrays", 6th ICETRAN 2019, RTI2.7, Silver Lake, Serbia, June 3 - 6, 2019, , https://etran.rs/2019/Proceedings_IcETRAN_ETRAN_2019.pdf

  4. B. Djordjevic, V. Timcenko, (2012), "Ext4 File System in Linux Environment: Features and Performance Analysis", International Journal of Computers, Editor-in-Chief Prof. Metin Demiralp, pp. 37-45, Issue 1, Volume 6, 2012, ISSN: 1998-4308, http://www.naun.org/main/NAUN/computers/17-372.pdf 

Naučni rad u međunarodnom časopisu

  1. Dušan Marković, Zoran Stamenković , Borislav Ðorđević and Siniša Ranđić,  Image Processing for Smart Agriculture Applications Using

    Cloud-Fog Computing, Sensors 2024, 24, 5965, https://doi.org/10.3390/s24185965 https://www.mdpi.com/journal/sensors



  2. Dušan Marković, Dejan Vujičić, Snežana Tanasković, Borislav Ðordević, Siniša Ranđić, and Zoran Stamenković, "Prediction of Pest Insect Appearance Using Sensors and Machine Learning“, Sensors 2021, 21, 4846, pp 1-13, doi: 10.3390/s21144846

  3. Sladjana M. Djurasevic, Uros M. Pesovic & Borislav S. Djordjevic, "Anomaly Detection Model for Predicting Hard Disk Drive, Failures“, Applied Artificial Intelligence, Volume 35, 2021 - Issue 8, pp. 549–566, DOI: 10.1080/08839514.2021.1922840

  4. B. Djordjevic, V. Timcenko, N. Kraljevic, N. Macek, "File System Performance Comparison in Full Hardware Virtualization with ESXi, KVM, Hyper-V and Xen Hypervisors," Advances in Electrical and Computer Engineering, vol.21, no.1, pp. 11-20, 2021, doi: 10.4316/AECE.2021.01002

  5. Vujicic Dejan, Pavlovic Rade, Milosevic Danijela, Djordjevic Borislav, Randjic Sinisa, Stojic Dijana, "Classification of Asteroid Families with Artificial Neural Networks“, Serbian Astronomical Journal, 2020 Issue 201, Pages: 39-48, doi: 10.2298/SAJ2001039V

  6. Nikola Davidović, Obradović Slobodan, Borislav Djordjevic, Valentina Timčenko, Bojan Škorić, "Influence of different factors on the RAID 0 paired magnetic disk arrays", February 2020, IJEEC - INTERNATIONAL JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTING 3(2), doi: 10.7251/IJEEC1902070D  

  7. Nemanja Maček, Borislav Đorđević, Jelena Gavrilović, Komlen Lalović, “An Approach to Robust Biometric Key Generation System Design”, Acta Polytechnica Hungarica, Journal of Applied Sciences Hungary, ISSN 1785-8860, Vol. 12, No. 8, 2015, pp 43-60, doi: 10.12700/APH.12.8.2015.8.3

  8. B. Djordjevic, N. Macek, V. Timcenko, "Performance Issues in Cloud Computing: KVM Hypervisor's Cache Modes Evaluation," Acta Polytechnica Hungarica, (2015), vol. 12 br. 4, pp. 147-165, doi: 10.5755/j01.eee.20.7.8025


  9. B. Djordjevic, V. Timcenko, "LVM in the Linux environment: performance examination," Technical Gazzete - Tehnički vjesnik 22, 5(2015), pp. 1157-1164. doi: 10.17559/TV-20131113112940

  10. N. Macek, B. Dordevic, V. Timčenko, M. Bojovic, M. Milosavljevic, "Improving Intrusion Detection with Adaptive Support Vector Machines," Electronics and Electrical Engineering – Kaunas: Technologija Vol 20, No 7 (2014), ISSN:1392-1215, pp. 57-60, doi: http://dx.doi.org/10.5755/j01.eee.20.7.8025

  11. Dragan Pleskonjic, Nemanja Macek, Borislav Djordjevic, Marko Caric: (2007), "Security of Computer Systems and Networks" Book Preview. Comput. Sci. Inf. Syst. 4(1): 77-92 (2007). Volume 4, Number 2, December 2007, Editorial: Marjan Mernik, ISSN : 1820-0214 http://www.comsis.org/ComSIS/Vol4No1/BookPreview/Book.htm, http://www.comsis.org/archive.php?show=pprnst-4805 

  12. B. Djordjevic, S. Miskovic, (2003), “Disk Interface comparison and Operating System file-caching investigation”, Microprocessors and Microsystems, Elsevier Science Volume/Issue 27/4, pp. 181-198 (received 10 July 2002; revised 1 December 2002, accepted 10 January 2003), http://dx.doi.org/10.1016/S0141-9331(03)00016-4

Naučni rad na međunarodnoj konferenciji

  1. Borislav Đorđević, Kristina Janjic, Nenad Kraljević, " File system performance comparison with Xen and Proxmox as type-1 Linux-based hypervisors “, PROCEEDINGS of XI ICETRAN, pp 565-568, ISBN 978-86-7466-930-3, June 3-6, 2024, Niš, Republic of Serbia, doi: 10.1109/IcETRAN62308.2024.10645178

  2. Borislav Đorđević, Kristina Janjic, Nenad Kraljević, FILE SYSTEM PERFORMANCE COMPARISON WITH THE HYPERVISORS ESXI AND XEN, Sinteza 2024, May 16, 2024. Belgrade, Serbia, ISBN: 978-86-7912-821-8, doi: 10.15308/Sinteza-2024-10-17

  3. Borislav Đorđević; Nenad Kraljević, Stefan Marić, Influence of Different Hypervisor Versions on File System Performance: Case Study With VMware Workstation, Sinteza 2024, May 16, 2024. Belgrade, Serbia, ISBN: 978-86-7912-821-8, doi: 10.15308/Sinteza-2024-2-9

  4. Borislav Đorđević; Nenad Kraljević; Kristijan Kuk, "Performance of Docker Containerization Tool on Different Linux Distributions“, 23d International Symposium INFOTEH-JAHORINA (INFOTEH), 20-22 March 2024, East Sarajevo, Bosnia and Herzegovina doi: 10.1109/INFOTEH60418.2024.10496034

  5. Borislav Đorđević; Nenad Kraljević; Nikola Davidović, "Performance Comparison of CPU Hardware-Assisted Features for the Type-2 Hypervisors“, 23d International Symposium INFOTEH-JAHORINA (INFOTEH), 20-22 March 2024, East Sarajevo, Bosnia and Herzegovina doi: 10.1109/INFOTEH60418.2024.10495932

  6. Goran Šimić, Jelena Mitić, Slobodanka Đenić, Borislav Đorđević, Ana Miletić, LEARINING MODEL IN COMPUTER PROGRAMMING COURSES – CHALLENGES AND SOLUTIONS, International Multidisciplinary Scientific Conference CCHE 2024, Kopaonik, Serbia, from January 29th to February 3rd, 2024 and published in the CCHE 2024 Book of Proceedings, pp 45-53, ISBN-978-86-82744-02-3 (tom), ISBN-978-86-82744-00-9 (niz), https://cche.rs, https://drive.google.com/drive/folders/15cMDG0QcNFyAIeeKTUMhqASA1NGZmvzJ 

  7. Đorđević Borislav, Kraljević Nenad, Hyper-V as type-2 hypervisor virtualization: guest file system performance examination, 31th TELECOMMUNICATIONS FORUM TELFOR 2023, Nov 21-22. 2023, Belgrade, Serbia,Electronic ISBN:979-8-3503-0313-1, CD:979-8-3503-0312-4, Print on Demand(PoD) ISBN:979-8-3503-0314-8, doi: 10.1109/TELFOR59449.2023.10372593  

  8. Borislav Đorđević; Nenad Kraljević; Kristijan Kuk, "Impact of Different Hypervisor Versions on the File System Performance: Case Study with VirtualBox“, 23d International Symposium INFOTEH-JAHORINA (INFOTEH), 20-22 March 2024, East Sarajevo, Bosnia and Herzegovina doi: 10.1109/INFOTEH60418.2024.10495992

  9. Nenad Korolija, Borislav Djordjević, Svetlana Štrbac-Savić, "SCRATCHPAD MEMORY UNIT IN HYBRID CONTROL-FLOW AND DATAFLOW ARCHITECTURES“, Sinteza 2023 - International Scientific Conference on Information Technology and Data Related Research, Publisher: Singidunum University, 32 Danijelova Street, Belgrade ISBN: 978-86-7912-800-3, 27.05.2023, https://portal.sinteza.singidunum.ac.rs/Media/files/2023/Sinteza-2023.pdf

  10. Borislav Đorđević, Saša Gucunja, Nenad Kraljević and Nikola Davidović, "Performance comparison of different hypervisor versions of the type-2 hypervisor VirtualBox“, RTI2.5 - Page 1 of 6, ISBN 978-86-7466-970-9, PROCEEDINGS of X INTERNATIONAL CONFERENCE IcETRAN, East Sarajevo, B&H, 05 - 08.06.2023, , June 5-8, 2023. https://www.etran.rs/2023/E_PROCEEDINGS_ICETRAN_2023/IcETRAN23_RADOVI/RTI2.5.pdf

  11. Borislav Đorđević; Nenad Kraljević; Nikola Davidović, "Guest file system behavior for type-2 hypervisor-based virtualization in VMware Workstation“, 22d International Symposium INFOTEH-JAHORINA (INFOTEH), 15-17 March 2023, pp 1-6, doi: https://doi.org/10.1109/INFOTEH57020.2023.10094170

  12. Borislav Đorđević; Valentina Timčenko, Nenad Kraljević; Aleksandar Popić, Nikola Davidović, "Performance Comparison of hardware RAID5 and RAID5+0 configurations under Linux environment", 22d International Symposium INFOTEH-JAHORINA (INFOTEH), 15-17 March 2023, pp 1-7, doi: https://doi.org/10.1109/INFOTEH57020.2023.10094176

  13. Borislav Đorđević; Valentina Timčenko, Nenad Kraljević; Iva Jovičić, Nikola Davidović, "Comparison of VMware Workstation, VirtualBox and MS Hyper-V hypervisor performance with MS Windows OS based guests“, 22d International Symposium INFOTEH-JAHORINA (INFOTEH), 15-17 March 2023, pp. 1-5, doi: https://doi.org/10.1109/INFOTEH57020.2023.10094080 

  14. Đorđević Borislav, Kraljević Nenad, Džuverović Boris, "Optimal guest file system for type-2 hypervisor-based virtualization in Virtual box“, 30th TELECOMMUNICATIONS FORUM TELFOR 2022, Nov 15-16. 2022, Belgrade, Serbia, pp 445-448, IEEE, https://doi.org/10.1109/TELFOR56187.2022.9983783

  15. Djordjevic Borislav, Timčenko Valentina, Kraljevic Nenad, Jovicic Nikola, "Performance comparison of KVM and Proxmox Type-1 Hypervisors“, 30th TELECOMMUNICATIONS FORUM TELFOR 2022, Nov 15-16. 2022, Belgrade, Serbia, pp 441-440, IEEE, https://doi.org/10.1109/TELFOR56187.2022.9983666

  16. Djordjevic Borislav, Stefanovic Aleksandar, Timčenko Valentina, "File system performance comparison in the case of Docker container-based virtualization with Volumes and Bind mounts“, 30th TELECOMMUNICATIONS FORUM TELFOR 2022, Nov 15-16. 2022, Belgrade, Serbia, pp 437-440, IEEE, https://doi.org/10.1109/TELFOR56187.2022.9983751

  17. Slađana Đurašević, Uroš Pešović, Borislav Đorđević, "Analysis of write amplification on solid state drives in datacenters”, CIIT 2022 UKIM FINKI, 19th International Conference on Informatics and Information Technologies, May, 5-6 2022, Skopje, North Macedonia,

    ISBN:978-608-4699-15-6, http://ciit.finki.ukim.mk/proceedings/ciit-2022-proceedings.pdf

  18. Borislav Đorđević, Miloš Piljić, Nenad Kraljević and Valentina Timčenko, "Comparison of file system performance in full virtualization with MS Hyper-V and KVM hypervisors“, PROCEEDINGS of IX ICETRAN, pp 565-568, ISBN 978-86-7466-930-3, June 6-9, 2022, Novi Pazar, Republic of Serbia, https://www.etran.rs/2022/zbornik/ICETRAN-22_radovi/067-RTI2.5.pdf

  19. Borislav Đorđević, Iva Jovičić, Nenad Kraljević and Valentina Timčenko, "Comparison of type-2 hypervisor performance on the example of VirtualBox, VMware Workstation player and MS Hyper-V“, pp 559-564, PROCEEDINGS of IX ICETRAN, June 6-9, 2022. Novi Pazar, Republic of Serbia, ISBN 978-86-7466-930-3, https://www.etran.rs/2022/zbornik/ICETRAN-22_radovi/066-RTI2.4.pdf

  20. Borislav Đorđević; Valentina Timčenko; Milovan Lazić; Nikola Davidović, "Performance comparison of Docker and Podman container-based virtualization“, 21st International Symposium INFOTEH-JAHORINA (INFOTEH), 16-18 March 2022, IEEE, pp. 1-6, doi: 10.1109/INFOTEH53737.2022.9751277

  21. Borislav Đorđević; Valentina Timčenko; Dušan Sakić; Nikola Davidović, "File system performance for type-1 hypervisors on the Xen and VMware ESXi“, 21st International Symposium INFOTEH-JAHORINA (INFOTEH), 16-18 March 2022, IEEE, pp. 1-6, doi: 10.1109/INFOTEH53737.2022.9751288

  22. Borislav Đorđević, Valentina Timčenko, Nenad Nedeljković, Nikola Davidović, (2021), "ESXi and Proxmox: FileSystem Performance Comparison for Type-1 Hypervisors”, pp 507-512, Proceedings of 8th International Conference on Electrical, Electronic and Computing Engineering, IcETRAN 2021, Ethno willage Stanišići, Republic of Srpska, Bosnia and Herzegovina, Sep 8-10.2021, ISBN: 978-86-7466-894-8, https://www.etran.rs/2021/zbornik/Papers/102_RTI_2.3.pdf

  23. B. Đorđević, V. Timčenko, O. Pavlović and N. Davidović, "Performance comparison of native host and hyper-based virtualization VirtualBox", 2021 20th International Symposium INFOTEH-JAHORINA (INFOTEH), 2021, pp. 1-4, doi: 10.1109/INFOTEH51037.2021.9400684

  24. B. Đorđević, V. Timčenko, E. Nikolić and N. Davidović, "Comparing Performances of Native Host and Virtualization on ESXi hypervisor" 2021 20th International Symposium INFOTEH-JAHORINA (INFOTEH), 2021, pp. 1-4, doi: 10.1109/INFOTEH51037.2021.9400648.


  25. Borislav Đorđević, Rade Furtula and Valentina Timčenko, "VMware ESXi and Microsoft Hyper-V Hypervisor Performance Comparison", TELFOR 2020. doi: 10.1109/TELFOR51502.2020.9306625


  26. Borislav Đorđević, Miloš Marjanović i Valentina Timčenko, "Performance comparison of native host and hyper-based KVM virtualization", TELFOR 2020. doi: 10.1109/TELFOR51502.2020.9306550

  27. Borislav Đorđević, Valentina Timčenko, Stefan Kovačević (2020), "ESXI, Microsoft Hyper-V, XenServer: FileSystem Performance Comparison for Type-1 Hypervisors", Proceedings of 7th International Conference on Electrical, Electronics and Computing Engineering, IcETRAN 2020, Beograd, Novi Sad, Čačak, Niš, Serbia, September 28th, 2020. https://www.etran.rs/2020/ZBORNIK_RADOVA/Radovi_prikazani_na_konferenciji/106_RTI1.1.pdf

  28. Dušan Marković, Dejan Vujičić, Borislav Đorđević, Siniša Ranđić, “Application of image processing in fog computing”, International Scientific Conference “UNITECH 2020” – Gabrovo, 20 - 21 NOVEMBER 2020 GABROVO, Bulgaria, ISSN 1313-230X, https://unitech-selectedpapers.tugab.bg/images/papers/2020/s4/s4_p204_v2.pdf

  29. Nikola Davidović, Obradovic Slobodan, Borislav Djordjevic, Valentina V Timcenko, "The influence of workloads and depth queue on the performance of SSD disk RAID 0 level array", 19th International Symposium INFOTEH-JAHORINA (INFOTEH), 2020. doi: 10.1109/INFOTEH48170.2020.9066283

  30. Borislav Djordjevic, Valentina V Timcenko, Sinisa Savic, Nikola Davidović, "Comparing Hypervisor Virtualization Performance with the Example of Citrix Hypervisor (XenServer) and Microsoft Hyper-V", 19th International Symposium INFOTEH-JAHORINA (INFOTEH), 2020. DOI: 10.1109/INFOTEH48170.2020.9066288

  31. Dejana T. Vojnak, Borislav S. Djordjevic, Valentina V Timcenko, Svetlana M. Strbac, "Performance Comparison of the type-2 hypervisor VirtualBox and VMWare Workstation", 2019 27th Telecommunications Forum (TELFOR), 2019. doi: 10.1109/TELFOR48224.2019.8971213

  32. M. Kojic, B. Djordjevic, Valentina V Timcenko, S. Strbac, "Storage performance analysis of iSCSI and Fibre Channel protocol", 27th Telecommunications Forum (TELFOR), 2019. doi: 10.1109/TELFOR48224.2019.8971162

  33. Slobodan Miletić, Borislav Đorđević, Siniša Ranđić, Aleksandar Vasić, "Uticaj primene hardverskih RAID rešenja na distribuciju podataka u taktičkoj integrisanoj telekomunikacionoj i računarskoj mreži“, (2019) 27th Telecommunications Forum (TELFOR), Belgrade, Serbia, November, 26-27, 2019 ISBN: 978-1-7281-4789-5, pp 101-105, doi: 10.1109/TELFOR48224.2019.8971118

  34. Borislav S. Djordjevic, Valentina V. Timcenko, Nenad Kraljevic, Nikola Davidovic, "File system performance comparison in full hardware virtualization with ESXi and Xen hypervisors" (Proceedings Paper), 18th Int. Symposium INFOTEH-JAHORINA (INFOTEH), (2019), ISBN: 978-1-5386-7073-6, doi: 10.1109/INFOTEH.2019.8717664

  35. Nikola Davidović, Borislav Đorđević, Valentina Timčenko, Slobodan Obradović, Bojan Škorić, "Sistem za skladištenje podataka na uparenim nizovima magnetnih diskova - RAID 0", 18th Int. Symposium INFOTEH-JAHORINA (INFOTEH), (2019). https://infoteh.etf.ues.rs.ba/zbornik/2019/radovi/P-3/P-3-2.pdf


  36. Atanasijević, J., Đorđević, B., Stanković, N., "Analysis of the influence of ssd and magnetic discs on the performance of sql server“, ICIST 2019, Proceedings Vol.2, pp. 236-239, 2019, 9th ICIST Kopaonik, Serbia, Mar 10-13, 2019., http://www.eventiotic.com/eventiotic/files/Papers/URL/dd639d3d-a299-48f6-ab32-ece7e2761b78.pdf

  37. V. Timcenko, B. Djordjevic, N. Davidovic, "Stripped disk array organizations with distributed parity RAID-5: study and performance analysis", invited paper, ISDOC 2014, pp. 113 - 121, May, Lisboa, Portugal ISBN: 978-1-4503-2713-8. https://doi.org/10.1145/2618168.2618186


  38. V. Timcenko, B. Djordjevic, S. Bostjancic Rakas, N. Davidovic, "Performance examination of type-2 hypervisors: case of particular database application in a virtual environment", invited paper, ISDOC 2014, pp. 122 - 126, May, Lisboa, Portugal ISBN: 978-1-4503-2713-8. https://doi.org/10.1145/2618168.2618187

  39. V. Timcenko, B. Djordjevic, "The comprehensive performance analysis of striped disk array organizations - RAID-0", invited paper, in proc. of Proceedings of the 2013 International Conference on Information Systems and Design of Communication, Lisbon, Portugal, pp. 113-116, July 2013. ISBN: 978-1-4503-2299-7 doi:10.1145/2503859.2503877  

  40. B. Djordjević, V. Timčenko, "Ext4 File System on the Hardware RAID-1: Features and Performance Analysis", invited paper, in Proc. of the 1st WSEAS Int. Conf. on Information Technology and Computer Networks (ITCN '12), Vienna, Austria, pp.316-321, November 2012, ISBN: 978-1-61804-134-0.

  41. V. Timcenko, B. Djordjevic, M. Stojanovic, "Porting GeoServer to Linux Environment and Applicability to Mobile Ad hoc Networks", invited paper, in the Proceedings of OSDOC2012, pp. 85 -91, Lisabon, Portugal, June 2012. https://doi.org/10.1145/2316936.2316951

Naučni rad na domaćoj konferenciji

  1. Jordan Atanasijević, Borislav Đorđević, Nevena Stanković, "IMPLEMENTACIJA I ANALIZA VERTIKALNOG PARTICIONISANJA U BAZAMA PODATAKA SA ASPEKTA MEMORIJE“, YU-INFO 2019, 10-13 Mart 2019, Kopaonik, ISBN 978-86-85525-23-0, http://www.yuinfo.org/zbornici/2019/YUINFO2019.pdf

  2. Jordan Atanasijević, Borislav Đorđević, Nevena Stanković "ANALIZA UTICAJA SSD I MAGNETNIH DISKOVA NA PERFORMANSE SQL SERVERA, YU-INFO 2019, 10-13 Mart 2019, Kopaonik, ISBN 978-86-85525-23-0, http://www.yuinfo.org/zbornici/2019/YUINFO2019.pdf

PhD Borislav Đorđević slika

PhD Borislav Đorđević

Kabinet: 407

Elektronska pošta: borislav.djordjevic@viser.edu.rs

Konsultacije
  • Ponedeljak: webex po dogovoru 
  • Utorak: webex po dogovoru
  • Sreda: webex po dogovoru
  • Četvrtak: 07-09 (407) 09-11 u blokadi
  • Petak: webex po dogovoru
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