1. M. A. Sadovsky, “Natural lumpiness of rocks,” Dokl AN SSSR, 247, No. 4 (1979).
2. M. V. Kurlenya, V. N. Oparin, and V. I. Vostrikov, “Formation of elastic wave packing in block media under pulse excitation. Pendulum type waves V µ,” Dokl AN SSSR,” 333, No. 4 (1993).
3. V. N. Oparin, B. D. Annin, Yu. V. Chugui, V. M. Zhigalkin, et al., “Methods and measuring equipment for modeling and in-situ monitoring of nonlinear wave-deformation processes in block rock masses,” in: Integration Projects. Issue 13 [in Russia], SO RAN, Novosibirsk (2007).
4. M. J. Fulton, “Numerical modeling in the discrete medium mechanics. Part I: methods of problem solution,” in: Introduction to Rock Mechanics [Russian translation], H. Bock (Ed.), Mir, Moscow (1983).
5. D. H. Trollop, “Numerical modeling in the discrete medium mechanics. Part II: Application of the numerical methods,” in: Introduction to Rock Mechanics [Russian translation], H. Bock (Ed.), Mir, Moscow (1983).