V. A. Fok ; translated from the Russian by N. Kemmer. V. G. Rekach ; translated from the Russian by M. Konyaeva. A. Luikov ; translated from the Russian by T. Kortneva. V. V. Naschokin ; translated from the Russian by S. Semyonov. S. Targ ; translated from the Russian by V. Talmy. L.V. Tarasov ; translated from the Russian by V. Kisin. V. Maslov ; translated from the Russian by O. Volodina. V. A. Fock ; translated from the Russian by Eugene Yankovsky. A. D. Shcheglov ; translated from the Russian by V. Shiffer. A. Komar ; translated from the Russian by I. Savin.