[by] V. Semishin ; tanslated from the Russian by Boris Belitsky. [by] N. Piskunov ; translated from the Russian by George Yankovsky. V.M. Gorodilin ; translated from the Russian by Boris Kuznetsov. by B. V. Gnedenko ; translated from the Russian by George Yankovsky. G. Glushkov ; translated from the Russian by N. Lebedinsky. G. Mirsky ; translated from the Russian by Boris Kuznetsov. [by] V. Rydnik. Translated from the Russian by George Yankovsky. G.E. Shilov ; translated from the Russian by S. Sosinsky. P. Akimov, translated from the russian by Anatoly Troitsky. Y. I. Manin ; translated from the Russian by Neal Koblitz.