%0 Journal Article %A S. M. Semenov %T Algebras on a Hilbert space which are generated by quadratic forms %J Funkcionalʹnyj analiz i ego priloženiâ %D 1971 %P 89-90 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1971_5_2_a12/ %G ru %F FAA_1971_5_2_a12