TY - BOOK AU - Arnold,Vadlimir Igorevich TI - Geometrical methods in the theory of ordinary differential equations SN - 0387906819 PY - 1983/// CY - New York: PB - Springer-Verlag, KW - INIST KW - DIFFERENTIAL EQUATIONS KW - GEOMETRIA DIFERENCIAL KW - PERTURBATION THEORY KW - STABILITY ER -