by G. I. Epifanov ; translated from the Russian by Mark Samokhvalov. P. S. Kireev ; translated from the Russian by Mark Samokhvalov. byV. M. Potapov ; translated from the Russian by Artavaz Beknazarov. I. E. Irodov ; translated from the Russian by Yuri Atanov. L. V. Tarasov ; translated from the Russian by Ram S. Wadhwa. M. K. Poltev; translated from the Russian by V. Kolykhmatov. Yu. N. Rabotnov ; translated from the Russian by M. Konyaeva. by A.V. Babin ; translated from the Russian by H. Zahavi. by I. Perepechko ;translated from the Russian by Artavaz Beknazarov. H. D. Ikramov ; translated from the Russian by Oleg Efimov.