%0 Journal Article %A D. V. Pashutkin %T On the reducibility of nonlinear differential-equations to block-triangular form %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2001 %P 50-57 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2001_6_a6/ %G ru %F IVM_2001_6_a6