by O. G. Tietjens ; translated by L. Rosenhead. by J. C. Simon ; translated by J. Howlett. by Dr. E. Sellin ; translated by W. Montgomery. by A.G. Sitenko ; translated by O.D. Kocherga. by Charles Bettelheim ; translated by Alfred Ehrenfeld. by M.I. Klinger ; translated by J.B. Sykes. by Chen Jie ; translated by Chen Zhen. by Feng Xuesong ; translated by Zhang Guoyao. by Nagaomi Seki ; translated by Don Kenny. by W. Nowacki. ; translated by H. Zorski.