TY - JOUR AU - D. D. Shubin TI - Topology of ambient manifolds of non-singular Morse - Smale flows with three periodic orbits JO - Izvestiya VUZ. Applied Nonlinear Dynamics PY - 2021 SP - 863 EP - 868 VL - 29 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVP_2021_29_6_a3/ LA - ru ID - IVP_2021_29_6_a3 ER -