TY  - BOOK
AU  - Verhulst, Ferdinand
TI  - Nonlinear differential equations and dynamical systems
SN  - 3540506284
U1  - 515.355 
PY  - 1990///
CY  - Berlin
PB  - Springer-Verlag
KW  - Differential equations, Nonlinear
N1  - Includes bibliography and index
ER  -