1. V. P. Korobeinikov, N. S. Mel'nikova, and E. V. Ryazanov, Theory of Point Explosions [in Russian], Fizmatgiz, Moscow (1961).
2. L. I. Sedov, Similarity and Dimensionality Methods in Mechanics [in Russian], 7th ed., Nauka, Moscow (1972).
3. I. I. Komissarova, G. V. Ostrovskaya, and L. L. Shapiro, Zh. Tekh. Fiz.,38 (1968).
4. L. V. Ostrovskaya and A. N. Zaidel', Usp. Fiz. Nauk,111, 579 (1973).
5. A. H. Guenther, W. K. Pendleton, et al., Opt. and Laser Technol.,5, No. 1, 20 (1973).