TY - DATA AU - Dumortier,Freddy AU - Llibre,Jaume AU - Artés,Joan C. ED - SpringerLink (Online service) TI - Qualitative Theory of Planar Differential Systems SN - 9783540329022 AV - QA372 D86 2006 PY - 2006/// CY - Berlin, Heidelberg PB - Springer KW - Mathematics KW - Differentiable dynamical systems KW - Differential Equations KW - Ordinary Differential Equations KW - Dynamical Systems and Ergodic Theory UR - http://dx.doi.org/10.1007/978-3-540-32902-2 ER -