%0 Journal Article %A N. A. Sidorov %A D. N. Sidorov %T Skeleton decomposition of linear operators in the theory of nonregular systems of partial differential equations %J The Bulletin of Irkutsk State University. Series Mathematics %D 2017 %P 75-95 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2017_20_a5/ %G ru %F IIGUM_2017_20_a5