%0 Journal Article %A P. I. Naumkin %A I. A. Shishmarev %T An asymptotic relationship between solutions of different nonlinear equations for large time values. I %J Differencialʹnye uravneniâ %D 1994 %P 873-881 %V 30 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_5_a16/ %G ru %F DE_1994_30_5_a16