@article{CMH_1979__54_139795,
     author = {Peter Buser},
     title = {Dichtepunkte im {Spektrum} {Riemannscher} {Fl\"achen.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {431--439},
     publisher = {mathdoc},
     volume = {54},
     year = {1979},
     zbl = {0423.58018},
     url = {http://geodesic.mathdoc.fr/item/CMH_1979__54_139795/}
}