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. V.V. Petrov ; translated from the Russian by A.A. Brown. S.I. Venetsky ; translated from the Russian by N.G. Kittell. V. G. Rekach ; translated from the Russian by M. Konyaeva. A. Gulyaev ; translated from the Russian by V. Afanasyev. A.A. Voronov ; translated from the Russian by Ram S. Wadhwa. I.M. Sobol ; translated from the Russian by V. I. Kisin. E. S. Makarov ; translated from the Russian by E.B. Uvarov.