TY - BOOK AU - Stephani,Hans AU - MacCallum,M.A.H. TI - Differential equations: their solution using symmetries SN - 0521355311 AV - QA371 .S8473 1989 U1 - 515.3/5 19 PY - 1989/// CY - Cambridge [England], New York PB - Cambridge University Press KW - Differential equations KW - Numerical solutions KW - Symmetry N1 - Includes bibliographical references (p. [253]-254) UR - http://www.loc.gov/catdir/description/cam023/88036744.html UR - http://www.loc.gov/catdir/toc/cam021/88036744.html ER -