RACZEW, A. Stateczność Sprężystego Pasma z Więzami Wewnętrznymi. Engineering Transactions, [S. l.], v. 19, n. 4, p. 647–656, 1971. Disponível em: https://et3.ippt.pan.pl/index.php/et/article/view/2556. Acesso em: 11 jun. 2025.