1. Mathematical Theory of Plasticity;Hill,1950
2. An Analytical Study of Rock Penetration by a Single Bit Tooth;Cheatham,1958
3. Plastic Flow and Fracture in Solids;Thomas,1961
4. Mixed boundary value problems in soil mechanics;Shield;Quart. appl. Math.,1953
5. Supersonic Flow and Shock Waves;Courant,1948