1. Generalized Plane Strain of Pressurized Orthotropic Tubes;Shaffer;Trans. of ASME,1965
2. Stress-Strain Relations of Reinforced Plastics Parallel and Normal to their Internal Filaments;Shaffer;J. Aero. and Astro.,1964
3. Applied Elasticity;Wang,1953
4. Material Properties of Reinforced Plastics;Shaffer;Traps. Soc. Plastics Eng.,1964