%0 Journal Article %A Wen-Ch'ing Winnie Li %A A.O.L. Atkin %T Twists of Newforms and Pseudo-Eigenvalues of W-Operators. %J Inventiones mathematicae %D 1978 %P 221-244 %V 48 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1978__48_142589/ %F IM_1978__48_142589