Mahini M, Moharrami H, Cocchetti G. A dissipated energy maximization approach to elastic-perfectly plastic analysis of planar frames. Arch. Mech. [Internet]. 2013 Jun. 12 [cited 2026 Jan. 17];65(3):171-94. Available from: http://am.ippt.gov.pl/index.php/am/article/view/v65p171