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[2] Symmetries and Conservation Laws for Differential Equations of Mathematical Physics - I. S. Krasil'shchik, Moscow Institute for Municipal Economy, and A. M. Vinogradov, University of Salerno, Editors - AMS, 1999, 333 pp., Hardcover, ISBN-10: 0-8218-0958-X, ISBN-13: 978-0-8218-0958-7, List: US$129, All AMS Members: US$103.20, MMONO/182 |