by V. M. Kamenkovich ; translated by R. Radok. by W. Nowacki. ; translated by H. Zorski. H. Kaesche ; translated by R.A. Rapp. by J. C. Simon ; translated by J. Howlett. by L. Kemechey ; translated by Magda Vamos. by M.I. Klinger ; translated by J.B. Sykes. by A. De Kovats and G. Desmur ; translated by R. S. Eaton.. edited by I. M. Khalatnikov. ; translated by J. George Adashko. by A.G. Sitenko ; translated by O.D. Kocherga. by S.M. Bilenky ; translated by G.B. Pontecorvo.