@article{JTNB_1990__2_2_365_0,
     author = {Iwaniec, Henryk},
     title = {On the order of vanishing of modular $L$-functions at the critical point},
     journal = {S\'eminaire de th\'eorie des nombres de Bordeaux},
     pages = {365--376},
     publisher = {Universit\'e Bordeaux I},
     volume = {Ser. 2, 2},
     number = {2},
     year = {1990},
     mrnumber = {1081731},
     zbl = {0719.11029},
     language = {en},
     url = {http://www.numdam.org/item/JTNB_1990__2_2_365_0/}
}