Коростелев A. E. “Five-Step Preparation of the Pilot of Civil Aviation in a System of Continuous Training”. Proceedings of National Aviation University (archive) 6, no. 1-2 (September 20, 2000): 79–83. Accessed April 17, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/9721.