Харченко, В.П., Д.Г. Бабейчук, and О.С. Слюняєв. “Optimization of Network Information Air Navigation Facilities by the Generalized Criterion of Efficiency”. Proceedings of National Aviation University (archive) 38, no. 1 (January 1, 2009): 3–5. Accessed April 13, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/1650.