TY - JOUR AU - A. S. Bobkova AU - A. Yu. Kolesov AU - N. Kh. Rozov TI - The ``Duck Survival'' Problem in Three-Dimensional Singularly Perturbed Systems with Two Slow Variables JO - Matematičeskie zametki PY - 2002 SP - 818 EP - 831 VL - 71 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2002_71_6_a2/ LA - ru ID - MZM_2002_71_6_a2 ER -