TY - JOUR AU - E. A. Kudryavtseva AU - A. A. Oshemkov TI - Bifurcations of integrable mechanical systems with magnetic field on surfaces of revolution JO - Čebyševskij sbornik PY - 2020 SP - 244 EP - 265 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CHEB_2020_21_2_a17/ LA - ru ID - CHEB_2020_21_2_a17 ER -