%0 Journal Article %A Yuval Z. Flicker %T Automorphic Forms on Covering Groups of GL(2). %J Inventiones mathematicae %D 1980 %P 119-182 %V 57 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1980__57_142705/ %F IM_1980__57_142705