L. Reshetov ; translated from Russian by Leo M. Sachs. N. Piskunov ; translated from the Russian by George Yankovsky. L. V. Tarasov ; translated from the Russian by Ram S. Wadhwa. K. Polivanov ; translated from Russian by P. Ivanov. L. B. Okun ; translated from Russian by V. I. Kisin. G. E. Shilov ; translated from the Russian by V. I. Kisin. A.A. Voronov ; translated from the Russian by Ram S. Wadhwa. L.V. Tarasov ; translated from the Russian by Ram S. Wadhwa. I.E. Irodov ; translated from Russian by Yuri Atanov. N. G. Chetaev; translated from the Russian by Irene Aleksanova.