%0 Journal Article %A N. G. Bulgakov %T On the asymptotic integration of non-linear systems with many degrees of freedom %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1958 %P 36-40 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1958_4_a3/ %G ru %F IVM_1958_4_a3