TY  - BOOK
AU  - Boyce,William E.
AU  - Diprima,Richard C.
TI  - Elementary differential equations and boundary value problems
U1  - 515.3/5 
PY  - 1986///
CY  - New York
PB  - Wiley
KW  - Differential equations
KW  - Boundary value problems
ER  -