Пивторак P. M.; Пивторак A. A. Ecological rows of aviation and air engines. Proceedings of National Aviation University (archive), [S. l.], v. 7, n. 3-4, p. 302–305, 2000. DOI: 10.18372/2306-1472.7.11307. Disponível em: http://jrnl.kai.edu.ua/index.php/visnik/article/view/11307. Acesso em: 14 jun. 2026.