Лупандин, М. В., И. А. Бескровная, С. И. Радченко, П. А. Устинов, and В. Г. Шутов. 2000. “Computerized System of Planning and Control of Use of Airspace”. Proceedings of National Aviation University 6 (1-2):184-87. https://doi.org/10.18372/2306-1472.6.9743.