@conference{Ord2015,
  author    = {Đorđević, S., Vesić Vasović, J., Radojičić, M., Nešić, Z.},
  title     = {Improvement of the process of school principals’ professional development in the field of management},
  booktitle = {Synthesis 2015 - International Scientific Conference of IT and Business-Related Research},
  year      = 2015,
  doi       = {10.15308/Synthesis-2015-359-363},
  pages     = {359-363}
}