%0 Journal Article %A V. M. Deundyak %T Homotopic classification of noetherian systems of multidimensional bisingular integral operators %J Matematičeskie zametki %D 1979 %P 857-869 %V 25 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1979_25_6_a5/ %G ru %F MZM_1979_25_6_a5