TY  - BOOK
AU  - Elsgolts, L
TI  - Differential Equations and the Calculus of Variations
U1  - 515.35 
PY  - 1977///
CY  - Moscow
PB  - Mir Publishers
KW  - GENERAL STACK
KW  - NATURAL SCIENCES & MATHEMATICS
KW  - MATHEMATICS
KW  - ANALYSISMathematics
ER  -