%0 Journal Article %A V. N. Chernomaz %T On the problem of the homotopy classification of elliptic systems with eight variables %J Differencialʹnye uravneniâ %D 1978 %P 943-946 %V 14 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_5_a26/ %G ru %F DE_1978_14_5_a26