%0 Journal Article %A O. N. Kozlova %T Summability of weak positive solutions of certain degenerate systems of partial differential equations in the case of a weighted scalar product %J Differencialʹnye uravneniâ %D 1979 %P 2168-2173 %V 15 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_12_a7/ %G ru %F DE_1979_15_12_a7