%0 Journal Article %A G. G. Kasparov %T An index for invariant elliptic operators, $K$-theory, and representations of Lie groups %J Doklady Akademii Nauk %D 1983 %P 533-537 %V 268 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_268_3_a3/ %G ru %F DAN_1983_268_3_a3