LISOWSKI, A. Wyboczenie Kopul Kulistych w Świetle Badań Modelowych. Engineering Transactions, [S. l.], v. 5, n. 1, p. 99–116, 1957. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/3003. Acesso em: 5 dec. 2025.