%0 Journal Article %A V. P. Skripnik %T Nonlinear systems with an $L^2$-small matrix multiplying the derivative %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1989 %P 51-56 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1989_10_a9/ %G ru %F IVM_1989_10_a9