%0 Journal Article %A V. G. Pestov %T On a valued field introduced by A. Robinson, and structures %J Doklady Akademii Nauk %D 1989 %P 43-46 %V 309 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a8/ %G ru %F DAN_1989_309_1_a8