%0 Journal Article %A N. L. Vasilevskii %A E. V. Gutnikov %T On the structure of the symbol of operators forming finite-dimensional algebras %J Doklady Akademii Nauk %D 1976 %P 11-14 %V 230 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_230_1_a0/ %G ru %F DAN_1976_230_1_a0