%0 Journal Article %A A. S. Pechentsov %T Traces of higher-order singular differential operators %J Doklady Akademii Nauk %D 1990 %P 1321-1324 %V 312 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_312_6_a8/ %G ru %F DAN_1990_312_6_a8