%0 Journal Article %A È. I. Grudo %T The asymptotic solutions of certain systems of partial differential equations %J Differencialʹnye uravneniâ %D 1974 %P 1451-1462 %V 10 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_8_a12/ %G ru %F DE_1974_10_8_a12