%0 Journal Article %A E. H. Al'brekht %T The coming together of quasilinear objects in the regular case %J Differencialʹnye uravneniâ %D 1971 %P 1171-1178 %V 7 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_7_a2/ %G ru %F DE_1971_7_7_a2