1. L. A. Novikov and S. N. Savchenko, ?Experimental investigation of plane problems of the effect of cracks on models built of optically active materials,? in: Mine Pressure, Rock Displacement, and a Method of Mine Surveying [in Russian], No. 68, Leningrad (1968).
2. L. A. Novikov and S. N. Savchenko, ?Interaction between a mine working and crack of finite length located near it,? in: Physics of Processes, Procedure, and Technique of Mineral-Resource Excavation [in Russian], Nauka, Leningrad (1970).
3. S. N. Savchenko and G. A. Sokolov, ?Stress state of a half plane with a fissured excavation,? Fiz.-Tekh. Probl. Razrab. Polezn. Iskop., No. 3 (1983).
4. S. N. Savchenko, ?Stress state of a plane weakened by an ordered system of disturbances,? Fiz.-Tekh. Probl. Razrab. Polezn. Iskop., No. 5 (1989).
5. S. N. Savchenko and A. A. Kozyrev, ?Stress state of a plane during the failure of a barrier between two parallel discontinuities,? Fiz.-Tekh. Probl. Razrab. Polezn. Iskop., No. 4 (1991).