%0 Journal Article %A P. A. Terekhin %T Projection description of bessel sequences %J Izvestiya of Saratov University. Mathematics. Mechanics. Informatics %D 2009 %P 44-51 %V 9 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ISU_2009_9_1_a5/ %G ru %F ISU_2009_9_1_a5