@article{MAN_1981__255_182858,
     author = {A. Good},
     title = {Cusp {Forms} and {Eigenfunctions} of the {Laplacian.}},
     journal = {Mathematische Annalen},
     pages = {523--548},
     publisher = {mathdoc},
     volume = {255},
     year = {1981},
     zbl = {0439.30031},
     url = {http://geodesic.mathdoc.fr/item/MAN_1981__255_182858/}
}