%0 Journal Article %A M. F. Gamal' %T On contractions with compact defects %J Zapiski Nauchnykh Seminarov POMI %D 2009 %P 13-41 %V 366 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2009_366_a1/ %G ru %F ZNSL_2009_366_a1