ŁODYGOWSKI, T. Numerical Analysis of Beams and Frames with Strain-Softening Materials. Engineering Transactions, [S. l.], v. 36, n. 3, p. 471–486, 1988. Disponível em: https://et3.ippt.pan.pl/index.php/et/article/view/1728. Acesso em: 24 apr. 2025.