Остроумов, І.В., О.Г. Кукуш, and В.П. Харченко. “Many Alternative Classification of Air Situations Where the Density Probability Distribution Are Known Accurately”. Proceedings of National Aviation University (archive) 31, no. 1 (January 1, 2007): 73–77. Accessed April 11, 2026. https://jrnl.kai.edu.ua/index.php/visnik/article/view/1439.