Холявкіна, Т. В., and О. М. Сукач. “Statistical Data Processing of Flight Safety Indices of Ukrainian Aviation”. Problems of Informatization and Control 1, no. 25 (March 10, 2009): 165–171. Accessed June 14, 2026. http://jrnl.kai.edu.ua/index.php/PIU/article/view/6968.