Zou Wenming Sign-changing:critical point theory by Zou Wenming - New York Springer 2008 - xiii, 278p. cm. ''References 263-276p''.; ''Index 277-278p''. ISBN: 9780387766577 (hbd) Standard No.: 83930 Source: Textbook Subjects--Topical Terms: Point theory Dewey Class. No.: B42, P8 TB