%0 Journal Article %A A. V. Strelets %A I. S. Feshchenko %T Systems of subspaces in Hilbert space that obey certain conditions, on their pairwise angles %J Algebra i analiz %D 2012 %P 181-214 %V 24 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2012_24_5_a7/ %G ru %F AA_2012_24_5_a7