1. Love, A. E. H., A Treatise on the Mathematical Theory of Elasticity (Dover Publications, New York, 1944), 4th ed.; pp.161, 162.
2. Sonneborn, R. H., Fiberglass Reinforced Plastics (Reinhold Publishing Corp., New York,1954), pp.181-188.
3. Stability of Orthotropic Cylindrical Shells Under Combined Loading