Лупандин, М. В., И. А. Бескровная, С. И. Радченко, П. А. Устинов, and В. Г. Шутов. “Computerized System of Planning and Control of Use of Airspace”. Proceedings of National Aviation University (archive) 6, no. 1-2 (September 20, 2000): 184–187. Accessed April 18, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/9743.