TY - JOUR AU - I. A. Bogaevsky TI - Interaction of the folded Whitney umbrella and swallowtail in slow--fast systems JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2012 SP - 29 EP - 33 VL - 278 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TM_2012_278_a2/ LA - ru ID - TM_2012_278_a2 ER -