%0 Journal Article %A M. S. Agranovich %A B. A. Amosov %T Elliptic pseudodifferential matrix operators on a closed curve %J Funkcionalʹnyj analiz i ego priloženiâ %D 1981 %P 79-81 %V 15 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1981_15_3_a6/ %G ru %F FAA_1981_15_3_a6