OLSZOWSKI, B. Dualne Aspekty Analizy Układów Prętowych. Engineering Transactions, [S. l.], v. 22, n. 1, p. 1–19, 1974. Disponível em: https://et3.ippt.pan.pl/index.php/et/article/view/2387. Acesso em: 9 jun. 2025.