@article{JRAM_1977__292_151875,
     author = {Asmus L. Schmidt},
     title = {Minimum of quadratic forms with respect to {Fuchsian} groups. {II.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {109--114},
     publisher = {mathdoc},
     volume = {292},
     year = {1977},
     zbl = {0347.10017},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1977__292_151875/}
}