1. Oldfather, W.A., Ellis, C.A., and Brown, D.M., Leonhard Euler’s Elastic Curves, Isis, 1933, vol. 20, pp. 72–160.
2. Timoshenko, S., Theory of Elastic Stability, New York: McGraw-Hill, 1936.
3. Timoshenko, S.P., Teoriya uprugosti (Elasticity Theory), St. Petersburg, 1916, vol. 2.
4. Hutchinson, J.W. and Neale, K.W., Mechanics of Sheet Metal Forming, New York: Plenum, 1978.
5. Marciniak, Z. and Duncan, J.L., The Mechanics of Sheet Metal Forming, Edward Arnold, 1992.