TY - JOUR AU - R. R. Mukhin TI - From the history of the theory of dynamical systems: Problem of classification JO - Izvestiya VUZ. Applied Nonlinear Dynamics PY - 2019 SP - 95 EP - 112 VL - 27 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVP_2019_27_5_a5/ LA - ru ID - IVP_2019_27_5_a5 ER -