[by] Yakov L. Alpert. Translated from Russian by Richard B. Rodman. Ya. L. Al'pert ; translated from Russian by H.H. Nickle. [by] E. T. Denisov. Translated from Russian by R. K. Johnston. [by] Karl K. Rebane; translated from Russian by John S. Shier. [by] V. A. Ivensen. Translated from Russian by Eric Renner. L. B. Okun ; translated from Russian by V. I. Kisin. [by] A. B. Mikhailovskii ;Translated from Russian by Julian B. Barbour. Yu. V. Egorov ; translated from Russian by Dang Prem Kumar. [by] V. I. Arnold. Translated and edited by Richard A. Silverman. edited by G. V. Samsonov ; translated from Russian by Robert K. Johnston.