Самков, О.В., and В.П. Климчук. “Particular Features of Development and Realizations of Purposeful Complex Programs in Ukraine”. Proceedings of National Aviation University (archive) 22, no. 4 (April 1, 2004): 55–60. Accessed June 14, 2026. http://jrnl.kai.edu.ua/index.php/visnik/article/view/1080.