@article{MOMA_1986__102_178304,
     author = {Karl Prachar and August Florian},
     title = {On the {Diophantine} {Equation} tan (k .../m) = k tan .../m.},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {263--266},
     publisher = {mathdoc},
     volume = {102},
     year = {1986},
     zbl = {0597.10017},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1986__102_178304/}
}