TY  - BOOK
AU  - Jordan, D W.
AU  - Smith, P.
TI  - Nonlinear ordinary differential equations: an introduction to dynamical systems [3rd ed.]
SN  - 0198565623
U1  - 515.352 
PY  - 1999///
CY  - New York
PB  - Oxford University press
KW  - Differential equations
ER  -