%0 Journal Article %A D. F. Kharazov %T Theory of symmetrizable operators with discrete spectrum %J Funkcionalʹnyj analiz i ego priloženiâ %D 1971 %P 87-88 %V 5 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1971_5_4_a19/ %G ru %F FAA_1971_5_4_a19