ШИФРИН, Б. Self-oscillations of aircraft landing gear shock-strut at considerable non-linear friction. Proceedings of National Aviation University (archive), [S. l.], v. 19, n. 1, p. 106–108, 2004. DOI: 10.18372/2306-1472.19.989. Disponível em: http://jrnl.kai.edu.ua/index.php/visnik/article/view/989. Acesso em: 3 may. 2026.