TY  - DATA
AU  - Dumortier,Freddy
AU  - Llibre,Jaume
AU  - Artés,Joan C.
TI  - Qualitative theory of planar differential systems
T2  - Universitext
SN  - 9783540328933
AV  - QA372  .D85 2006
PY  - 2006///
CY  - New York
PB  - Springer
KW  - Differential equations
KW  - Qualitative theory
KW  - Numerical solutions
ER  -