Guo, Ying Qiao, and Hossein Shakourzadeh. 1997. “Comparaison De Differents Algorithmes De Plasticite Dans I’ Analyse Non Lineaire Des Structures De Poutres 3D”. European Journal of Computational Mechanics 6 (2):135-64. https://journals.riverpublishers.com/index.php/EJCM/article/view/3449.