TY  - GEN
AU  - Boycee
TI  - Elementary differential equations and boundary value problems, 5/e
U1  - 515.35 BOY 
PY  - 1992///
CY  - N Y
PB  - John Wiely & Sons
N1  - with instructions for online access is pasted inside the book
N2  - boundary value problems
ER  -