@article{IM_1989__97_2_143707,
     author = {David E. Rohrlich},
     title = {Nonvanishing of {L-functions} for {GL(2).}},
     journal = {Inventiones mathematicae},
     pages = {381--404},
     publisher = {mathdoc},
     volume = {97},
     number = {2},
     year = {1989},
     zbl = {0677.10020},
     url = {http://geodesic.mathdoc.fr/item/IM_1989__97_2_143707/}
}