I.M. Sobol ; translated from the Russian by V. I. Kisin. L.I. Sedov ; translated from the Russian by V.I. Kisin. G. E. Shilov ; translated from the Russian by V. I. Kisin. L.B. Okun ; translated from the Russian by V.I. Kisin. N.M. Pokrovsky, translated from the Russian by I. V. Savin. L.V. Tarasov ; translated from the Russian by V. Kisin. V.V. Petrov ; translated from the Russian by A.A. Brown. A. Komar ; translated from the Russian by I. Savin. G.E. Shilov ; translated from the Russian by S. Sosinsky. L. B. Okun ; translated from Russian by V. I. Kisin.