TY  - BOOK
AU  - Wan,Frederick Y.M.
TI  - Introduction to the calculus of variations and its applications
SN  - 0412051419 (cased)
PY  - 1995///
CY  - New York
PB  - Chapman & Hall
KW  - Calculus of variations
N1  - Includes index; Includes bibliographical references : p. 621-625
ER  -