N. Rykalin ; tr. from the Russian by O. Glebov. V. Rydnik ; tr. from the Russian by G. Yankovsky. A. Betekhtin ; tr. from the Russian by V. Agol. J. Leja. ; tr. from the Russian by E. Koltsova. L.A. Artsimovich ; tr. from the Russian by Oleg Glebov. V. Alexeyev ; tr. from the Russian by E. Uuarov. H.D. Ikramov ; tr. from the Russian by OLeg Efimov. V. Vladimirow ; tr. from the Russian by P. Smirnov. A. Kutepov ; tr. from the Russian by Oleg Meshkov. P. Bidulya ; tr. from the Russian by A. Troitsky.