TY  - BOOK
AU  - Walter, Wolfgang
TI  - Ordinary differential equations
T2  - (Graduate Texts in Mathematics; 182. Reading In Mathematics)
SN  - 0387984593
U1  - 515.35 
PY  - 1998///
CY  - New York
PB  - Springer
KW  - Ecuaciones diferenciales
ER  -