1. Optimum design of geometrically nonlinear elastic-plastic steel frames;Saka;Comput. Struct.,1991
2. Experiments with clamped end beams;Kazinczy;Betonszemle,1914
3. Theory of limit design;Van den Broek,1948
4. Plastic Design of Frames 1: Fundamentals;Baker,1969
5. Fundamental propositions in the plastic theory of structures;Horne;J. Inst. Civil Eng.,1950