by J.Zenneck; translated from the German. [translated from the German] K. Zinner ; translated from the German by G. Winkler. Translated and rev. from the German. by Heinrich Mann ; translated from the German by Eric Sutton. by Jean U. Thoma; [translated from the German and the Italian]. by Max Frisch ; translated from the German by Michael Bullock. by P. Grivet ; translated from the French by P.W. Hawkes. by B. V. Gnedenko ; translated from the Russian by George Yankovsky. by A.I. Lurie ; translated from the Russian by K.A. Lurie.