Харченко, В.П., О.Г. Кукуш, and В.М. Васильєв. “Determination of Allowable Time for Decision Making in Collision Avoidance Systems in Free Flight Environment”. Proceedings of National Aviation University 19, no. 1 (January 1, 2004): 29–33. Accessed May 5, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/957.