Stormark, Olle, 1945- Lie's structural approach to PDE systems/ Olle Stormark. - New York: Cambridge University Press, 2000. - xv, 572 p.; 24 cm. - Encyclopedia of mathematics and its applications; 80 . - Encyclopedia of mathematics and its applications; v. 80. . Includes bibliographical references and index. ISBN: 0521780888 LCCN: 99054436 Subjects--Topical Terms: Differential equations, Partial--Numerical solutions. Dewey Class. No.: 515.35 / S885l