1. Biezeno C. B. and Grammel R. (1956). “Transitional instability of a beam of small initial curvature.” Engineering dynamics. Vol. 2: Elastic problems of single machine elements . Blackie and Son Ltd. London England 397–411.
2. Further studies on the elastic stability of curved beams
3. Stability Criteria for Shallow Arches
4. Donnell L. H. (1933). “Stability of thin‐walled tubes under torsion.” NACA Report 479 NACA Washington D.C.
5. Fung Y. C. and Kaplan A. (1952). “Buckling of low arches or curved beams of small curvature.” NACA Technical Note 2840 NACA Washington D.C.