BŁOCKA, B. Free Vibrations of Thin, Elastic, Orthogonally Stiffened Shells of Revolution with Stiffeners Treated as Discrete Elements. Engineering Transactions, [S. l.], v. 37, n. 1, p. 65–87, 1989. Disponível em: https://et3.ippt.pan.pl/index.php/et/article/view/1656. Acesso em: 24 apr. 2025.