%0 Journal Article %A S. A. Kruglyak %A L. A. Nazarova %A A. V. Roiter %T Orthoscalar representations of quivers in the category of Hilbert spaces %J Zapiski Nauchnykh Seminarov POMI %D 2006 %P 180-201 %V 338 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2006_338_a7/ %G ru %F ZNSL_2006_338_a7