%0 Journal Article %A M. V. Klibanov %T A two-dimensional inverse problem for an elliptic equation %J Differencialʹnye uravneniâ %D 1983 %P 1072-1074 %V 19 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_6_a18/ %G ru %F DE_1983_19_6_a18