TY - JOUR AU - A. B. Korchagin TI - New $M$-curves of degrees $8$ and $9$ JO - Doklady Akademii Nauk PY - 1989 SP - 1038 EP - 1041 VL - 306 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_306_5_a1/ LA - ru ID - DAN_1989_306_5_a1 ER -