1. Plane problem of the theory of elasticity of an inhomogeneous isotropic medium;Du Tsin Hua,1961
2. On the bending theory of plates on an elastic inhomogeneous half-space;Popov,1959
3. Some problems in the theory of elasticity of nonhomogeneous elastic media;Ter-Mkrtich'ian;PMM,1961
4. On the theory of elasticity of a nonhomogeneous medium;Rostovtsev;PMM,1964
5. Theory of Elasticity;Papkovich,1939