Special thanks are due to Mr. V.Kulikauskas for the initial translation, to Dr. A. Marchertas for editorial effort and to the U.S. Department of Energy for providing assistance which made it possible to prepare the English language edition. The authors gratefully acknowledge support provided by the United States Agency for International Development and by the United States Department of Energy.
The revised version owes additional special thanks to Dr. R. Pabarčius, ISAG, whose assistance in preparing this publication is significant and is deeply appreciated. At the plant, valuable advice was provided by Mr. G. Zheltobriuch, Head of Engineering Assessment Department and his staff, especially by Mr. A. Merezhnikov. The preparation and publication of the revised edition is supported by the U.S. Department of Energy, administrative services are provided by the Pacific Northwest Batelle Laboratories, personal administrative responsibility was exercized by Mr. G. Smith. Their support and efforts are gratefully acknowledged.