TY  - GEN
AU  - Nagle,R.Kent
AU  - Saff,E.B
TI  - Fundamentals of differential equations and boundary value problems
SN  - 0-8053-0253-0
U1  - 515 
PY  - 1993///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co
KW  - Differential equations
KW  - Boundary value problems
ER  -