TY  - BOOK
AU  - Agarwal, Ravi P. 
AU  - O'Regan, Donal
TI  - An introduction to ordinary differential equations
SN  - 9780387712758
U1  - 515.352 
PY  - 2008///
CY  - New York
PB  - Springer
KW  - Differential equations
ER  -