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2. Theory of Elastic Stability;Timoshenko,1961
3. Stability of Structures: Elastic, Inelastic, Fracture and Damage Theories;Bažant,2010
4. A General Theory of Elastic Stability;Thompson,1973
5. J. Loughlan, Mode Interaction in Lipped Channel Columns Under Concentric or Eccentric Loading (Ph.D. thesis), University of Strathclyde, 1979.