1. E. I. Shemyakin, G. A. Fisenko, M. V. Kurlenya, V. N. Oparin, et al., "Zonal disintegration of rock around underground workings," Dokl. Akad. Nauk SSSR,289, No. 5 (1986).
2. E. I. Shemyakin, M. V. Kurlenya, V. N. Oparin, V. N. Reva, F. P. Glushikhin, and M. A. Rozenbaum, "Authors' Certificate 400. Zonal disintegration of rock around underground workings," Byul. Izobr., No. 1 (1992).
3. B. K. Norel, Variation in Mechanical Strength of a Coal Bed in Rock [in Russian], Nauka, Moscow (1983).
4. G. F. Bobrov and K. T. Mezentsev, "Shock resistance of ore in the intervening rock of the Talkhansk deposits," Fiz.-Tekh. Probl. Razrab. Polezn. Iskop., No. 3 (1978).
5. A. N. Stavrogin and A. G. Protosenya, Strength of Rock and Stability of Workings at Great Depths [in Russian], Nedra, Moscow (1985).