%0 Journal Article %A A. A. Kosmodem'yanskii (Jr.) %T On a~problem with an unknown boundary for elliptic equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1985 %P 237-238 %V 40 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1985_40_3_a14/ %G en %F RM_1985_40_3_a14