%0 Journal Article %A Yu. L. Shmul'yan %T Representation of Hermitian operators with improper scale subspace %J Sbornik. Mathematics %D 1971 %P 554-564 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1971_14_4_a5/ %G en %F SM_1971_14_4_a5