%0 Journal Article %A I. E. Ovcharenko %T On the expansion of hermitian forms and symmetric operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 1971 %P 89-90 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1971_5_1_a16/ %G ru %F FAA_1971_5_1_a16