DRESCHER, A. Analiza Pewnego Modelu Ciała Sprężysto-Lepkoplastycznego. Engineering Transactions, [S. l.], v. 15, n. 4, p. 713–729, 1967. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/2712. Acesso em: 5 dec. 2025.