TY  - BOOK
AU  - Ewing,George M.
TI  - Calculus of variations with applications
AV  - QA315 .E9
U1  - 517/.4 
PY  - 1969///]
CY  - New York
PB  - W. W. Norton
KW  - Calculus of variations
KW  - Local
N1  - Bibliography: p. 331-340
ER  -