%0 Journal Article %A V. L. Kulagin %T A parabolic problem with an unknown boundary %J Doklady Akademii Nauk %D 1980 %P 76-79 %V 252 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_252_1_a19/ %G ru %F DAN_1980_252_1_a19