%0 Journal Article %A D. Yu. Grigor'ev %T Complexity of solving linears systems in the rings of differential operators %J Zapiski Nauchnykh Seminarov POMI %D 1991 %P 47-60 %V 192 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1991_192_a1/ %G ru %F ZNSL_1991_192_a1