“Elastoplastic Analysis of Plane Structures Using Improved Membrane Finite Element With Rotational DOFs: Elastoplastic Analysis of Plane Structures”. Frattura ed Integrità Strutturale 14, no. 52 (February 6, 2020): 148–162. Accessed September 25, 2024. https://ww3.fracturae.com/index.php/fis/article/view/2691.