TY - JOUR AU - N. A. Sapogov TI - Stability for the Marcinkiewicz theorem. Case of a fourth-degree polynomial JO - Zapiski Nauchnykh Seminarov POMI PY - 1976 SP - 107 EP - 124 VL - 61 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1976_61_a10/ LA - ru ID - ZNSL_1976_61_a10 ER -