[by] N.A. Goryunova. Edited by J.C. Anderson. Translated by Scripta Technica, inc. Arnold Kaufmann, Translated by Scripta Technica, Inc. bu Veniamin G. Levich ;translated by Scripta Technica, inc. [by] V. N. Constantinescu. Technical editor: Robert L. Wehe. Translated by Scripta Technica, inc. [by] J. Bass ; translated by Scripta Technica, Inc.