%0 Journal Article %A A. N. Parshin %T On a~Ring of Formal Pseudodifferential Operators %J Informatics and Automation %D 1999 %P 291-305 %V 224 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1999_224_a18/ %G ru %F TRSPY_1999_224_a18