%0 Journal Article %A K. Kh. Boimatov %T The domain of definition of a Sturm--Liouville operator %J Differencialʹnye uravneniâ %D 1976 %P 1151-1160 %V 12 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_7_a1/ %G ru %F DE_1976_12_7_a1