TY - JOUR AU - I. V. Itenberg TI - Rigid isotopy classification of the curves of degree 6 with a non-degenerate singular point JO - Zapiski Nauchnykh Seminarov POMI PY - 1991 SP - 72 EP - 89 VL - 193 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1991_193_a4/ LA - ru ID - ZNSL_1991_193_a4 ER -