@article{MAN_1991__291_1_164872,
     author = {Werner Hoffmann},
     title = {Cuspidal functions and {Diophantine} approximation.},
     journal = {Mathematische Annalen},
     pages = {357--372},
     publisher = {mathdoc},
     volume = {291},
     number = {1},
     year = {1991},
     zbl = {0724.11032},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__291_1_164872/}
}