TY - JOUR AU - A. V. Domrina AU - S. Yu. Orevkov TI - On four-sheeted polynomial mappings of $\mathbb C^2$. I. The case of an irreducible ramification curve JO - Matematičeskie zametki PY - 1998 SP - 847 EP - 862 VL - 64 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1998_64_6_a5/ LA - ru ID - MZM_1998_64_6_a5 ER -