N.M. Belyaev ; translated from the Russian by N.K. Mehta. I.V. Savelyev ; translated from the Russian by G. Leib. A.M. Vasilyev ; translated from the Russian by G. Leib. L.I. Sedov ; translated from the Russian by V.I. Kisin. V.V. Petrov ; translated from the Russian by A.A. Brown. A. Gulyaev ; translated from the Russian by V. Afanasyev. A.A. Voronov ; translated from the Russian by Ram S. Wadhwa. L.V. Tarasov ; translated from the Russian by Ram S. Wadhwa. S.I. Venetsky ; translated from the Russian by N.G. Kittell. L.B. Okun ; translated from the Russian by V.I. Kisin.