[by] L.A. Dorfman. Translated by N. Kemmer. [by] I. G. Kaplan. Translated by J. Gerratt. [by] I. V. Pyatnitskii. Translated by N. Kaner. by J. C. Simon ; Translated by J. Howlett by R. Courant. Translated by E. F. McShane. by J. P. Mathieu ; translated by J. Warren Blaker. by Wu Minxian ; translated by Li Xiaona. by Felix Klein ; translated by M. Ackerman. by Ludwig Boltzmann; translated by Stephen G. Brush.