%0 Journal Article %A V. T. Pristavko %A V. i. Tolkachev %T Stochastic differential equations of a nonlinear quadratic filter %J Differencialʹnye uravneniâ %D 1996 %P 509-513 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1996_32_4_a9/ %G ru %F DE_1996_32_4_a9