%0 Journal Article %A D. P. Zhelobenko %T A~description of the quasi-simple irreducible representations of the groups $U(n,1)$ and $\operatorname{Spin}(n,1)$ %J Izvestiya. Mathematics %D 1977 %P 31-50 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1977_11_1_a1/ %G en %F IM2_1977_11_1_a1