%0 Journal Article %A T. V. Treneva %T Multidimensional analogues of the A.\,V.~Bitsadze system %J Differencialʹnye uravneniâ %D 1985 %P 141-144 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_1_a17/ %G ru %F DE_1985_21_1_a17