Ищенко, С. А., and А. Р. Давидов. “Method of Estimation of Characteristics Losses of Aircraft Airworthiness”. Proceedings of National Aviation University (archive) 7, no. 3-4 (December 15, 2000): 67–72. Accessed March 2, 2026. https://jrnl.nau.edu.ua/index.php/visnik/article/view/11266.