TY  - BOOK
AU  - Elsgole, LD
TI  - Calculus of variations
SN  - 9780486457994
U1  - 517.97 
PY  - 2007///
CY  - New York
PB  - Dover
KW  - CALCULUS
KW  - MIXED PROBLEMS
KW  - RITZ'S METHOD
ER  -