TY - JOUR AU - V. G. Pestov TI - On a valued field introduced by A. Robinson, and structures JO - Doklady Akademii Nauk PY - 1989 SP - 43 EP - 46 VL - 309 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a8/ LA - ru ID - DAN_1989_309_1_a8 ER -