%0 Journal Article %A I. N. Dovzhenko %A È. R. Tsekanovskii %T Classes of Stieltjes operator functions and their conservative %J Doklady Akademii Nauk %D 1990 %P 18-22 %V 311 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_311_1_a2/ %G ru %F DAN_1990_311_1_a2