@article{IM_1994__117_1_144219,
     author = {Marvin I. Knopp},
     title = {On {Dirchlet's} series satisfying {Riemann's} functional equation.},
     journal = {Inventiones mathematicae},
     pages = {361--372},
     publisher = {mathdoc},
     volume = {117},
     number = {1},
     year = {1994},
     zbl = {0816.11032},
     url = {http://geodesic.mathdoc.fr/item/IM_1994__117_1_144219/}
}