%0 Journal Article %A Yu. F. Korobeinik %T Countable definability of a family of domains that contain a %J Doklady Akademii Nauk %D 1997 %P 304-306 %V 354 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1997_354_3_a3/ %G ru %F DAN_1997_354_3_a3