TY - JOUR AU - S. P. Gorbikov TI - Local singularities of dynamical systems with shock interactions JO - Matematičeskie zametki PY - 1998 SP - 531 EP - 542 VL - 64 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1998_64_4_a4/ LA - ru ID - MZM_1998_64_4_a4 ER -