%0 Journal Article %A D. Yu. Ivanov %T Inverse boundary value problems for an abstract elliptic equation %J Differencialʹnye uravneniâ %D 2000 %P 519-526 %V 36 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_4_a11/ %G ru %F DE_2000_36_4_a11