1. Galin LA. Contact problems in the theory of elasticity. Gastekhizdat, Moscow, U.S.S.R. (in Russian) 1953. North Carolina State College, Raleigh, N. C. (in English); 1961.
2. The mechanics of the contact between deformable bodies;De Pater,1974
3. Some basic problem of mathematical theory of elasticity;Muskhelishvili,1963
4. Complex variable methods in elasticity;England,1971
5. Contact problems in the classical theory of elasticity;Gladwell,1980