TY - JOUR AU - S. V. Gonchenko AU - A. S. Markichev AU - A. E. Shatalin TI - Stable Periodic Trajectories of Two-Dimensional Diffeomorphisms Close to a Diffeomorphism with a Structurally Unstable Heteroclinic Contour JO - Differencialʹnye uravneniâ PY - 2001 SP - 191 EP - 201 VL - 37 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2001_37_2_a5/ LA - ru ID - DE_2001_37_2_a5 ER -