TY  - BOOK
AU  - Boyce, William E
AU  - DiPrima, Richard C.
TI  - Elementary differential equations and boundary value problems. 7th ed
SN  - 0471319996
AV  - QA371. B773 
PY  - 2001///
PB  - Wiley
KW  - Differential equations
KW  - Boundary value problems
ER  -