1. Theory of Elastic Stability;Timoshenko,1961
2. Principles of Structural Stability;Chajes,1974
3. An Introduction to the Elastic Stability of Structures;Simitses,1976
4. Stability of Structures;Bazant,1991
5. Analysis of frames with partial connection rigidity;Romstad;ASCE J. Struct. Div.,1970