%0 Journal Article %A V. I. Elkin %T General solution of systems of partial differential equations with identical principal part %J Differencialʹnye uravneniâ %D 1985 %P 1389-1398 %V 21 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_8_a12/ %G ru %F DE_1985_21_8_a12