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2. On the general theory of elastic stability;Southwell;Phil. Trans., A,1913
3. The resistance of tubes to collapse;Cook;Report of the British Assoc. for the Advancement of Science, Birmingham,1913
4. Collapse by instability of thin cylindrical shells under external pressure;Windenburg;J. Appl. Mech.,1934
5. Buckling of thin shells under external pressure;Armenakas;J. Engng Mech. ASCE,1963