%0 Journal Article %A A. Khaidarov %T A class of inverse problems for elliptic equations %J Differencialʹnye uravneniâ %D 1987 %P 1376-1383 %V 23 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_8_a10/ %G ru %F DE_1987_23_8_a10