%0 Journal Article %A I. M. Gel'fand %A D. B. Fuchs %T Topological invariants of noncompact Lie groups connected with infinite dimensional representations %J Doklady Akademii Nauk %D 1967 %P 763-766 %V 177 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_177_4_a3/ %G ru %F DAN_1967_177_4_a3