@conference{Pet2016,
  author    = {Petković, M., Bulatović, V., Aleksić, I.},
  title     = {Open Source Technologies in Geographic Information Systems},
  booktitle = {Sinteza 2016 - International Scientific Conference on ICT and E-Business Related Research},
  year      = 2016,
  doi       = {10.15308/Sinteza-2016-195-201},
  pages     = {195-201}
}