@article{IM_1978__45_142533,
     author = {R.W. Bruggeman},
     title = {Fourier {Coefficients} of {Cusp} {Forms.}},
     journal = {Inventiones mathematicae},
     pages = {1--18},
     publisher = {mathdoc},
     volume = {45},
     year = {1978},
     zbl = {0351.10019},
     url = {http://geodesic.mathdoc.fr/item/IM_1978__45_142533/}
}