Lysenko, A.I., V.N. Kazak, and I.V. Chekanova. “TWO-LEVEL OPTIMAL CONTROL DESIGN”. Proceedings of National Aviation University (archive) 24, no. 2 (February 1, 2005): 56–58. Accessed April 21, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/1142.