TY - JOUR AU - V. D. Sedykh TI - On the adjacency of type $D$ singularities of a front JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2024 SP - 550 EP - 552 VL - 79 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_2024_79_3_a4/ LA - en ID - RM_2024_79_3_a4 ER -