by A.G. Sitenko ; translated by O.D. Kocherga. by S.M. Bilenky ; translated by G.B. Pontecorvo. by J. C. Simon ; translated by J. Howlett. by O. G. Tietjens ; translated by L. Rosenhead. by Anna Livanova ; translated by J.B. Sykes. by M.I. Klinger ; translated by J.B. Sykes. by Chen Jie ; translated by Chen Zhen. by Nagaomi Seki ; translated by Don Kenny. by W. Nowacki. ; translated by H. Zorski. by Dr. E. Sellin ; translated by W. Montgomery.