1. J.E. Gordon, Structures, or Why Things Don't Fall Down, 1st Edition, Penguin Books, London, 1978, p. 286.
2. A.E.H. Love, A Treatise on the Mathematical Theory of Elasticity, 4th Edition, Dover Publications, New York, 1944, p. 399.
3. Elastica of cantilevered beams with variable cross sections;Lee;Int. J. Non-Linear Mech.,1993
4. Elastica and buckling load of simple tapered columns with constant volume;Lee;Int. J. Non-Linear Mech.,2000
5. Local and global bifurcation analyses of a spatial cable elastica;Gottlieb;ASME J. Appl. Mech.,1999