TY - GEN AU - Verhulst,Ferdinand TI - Nonlinear differential equations and dynamical systems T2 - Universitext SN - 0387506284 AV - QA372 U1 - 515.355 PY - 1990/// CY - Berlin , New York PB - Springer-Verlag KW - Nonlinear differential equations KW - Differentiable dynamical systems N1 - Bibliografie Index ER -