G. G. Polikarpov ; translated from the Russian by Scripta Technica. A. V. Pogorelov ; translated from the Russian by Leonid Levant. byV. M. Potapov ; translated from the Russian by Artavaz Beknazarov. A. V. Skorohod ; translated from the Russian by Kenneth Wickwire. I. E. Irodov ; translated from the Russian by Yuri Atanov. L. V. Tarasov ; translated from the Russian by Ram S. Wadhwa. V. S. Shapot ; translated from the Russian by David A. Myshne. N. G. Chetaev ; translatd from the Russian by Irene Aleksanova. P. S. Kireev ; translated from the Russian by Mark Samokhvalov. V. Vladimirov ; translated from the Russian by Oleg Meshkov.