1. Ya. B. Zel'dovich, Zh. Prikl. Mekhan. Tekh. Fiz., No. 1 (1963).
2. R. Akiba and M. Tanno, Proceedings of the 1st International Symposium on Rockets and Astronautics, Tokyo (1959).
3. R. Sehgal and L. Strand, AIAA J.,2, No. 4 (1964).
4. B. V. Novozhilov, Fiz. Goren. Vzryva,3, No. 1 (1967).
5. J. S. Tien, W. A. Sirignano, and M. Summerfield, AIAA J.,8, No. 1 (1970).