%0 Journal Article
%A J. Hoffstein
%A D., Friedberg, S. Bump
%T Nonvanishing theorems for L-functions of modular forms and their derivatives.
%J Inventiones mathematicae
%D 1990
%P 543-618
%V 102
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1990__102_2_143846/
%F IM_1990__102_2_143846