S. N. Stupar, A. M. Simonović, Z. L. Filipović, and M. M. Jovanović, “Improvement of the military academy education system for aeronautics students using the flying laboratory”, Vojnoteh. glas., vol. 61, no. 1, pp. 162–177, Jan. 2013, doi: 10.5937/vojtehg61-1345.