%0 Journal Article %A M. A. Lifshits %T Invariance principle in a~bilinear model with weak non-linearity %J Zapiski Nauchnykh Seminarov POMI %D 2004 %P 97-105 %V 320 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2004_320_a6/ %G ru %F ZNSL_2004_320_a6