A. N. Matveev ; translated from the Russian by Ram Wadhwa and Natalia Deineko. L. V. Tarasov ; translated from the Russian by Ram S. Wadhwa. A. K. Goroshkin ; Translated from the Russian by Felix Palkin and Valerian Palkin. P. S. Kireev ; translated from the Russian by Mark Samokhvalov. Yu. M. Lakhtin ; translated from the Russian by Nicholas Weinstein. I. V. savelyev ; translated from the Russian by G. Leib. I. V. Savelyev ; translated from the Russian by G. Leib. by D. N. Reshetov ; translated from the Russian by Nicholas Weinstein. E. S. Wentzel ; translated from the Russian by Michael G. Edelev. Leonid Morozov ; translated from the Russian by Gayane Chalyan.