@article{MAN_1959__138_160700,
     author = {K. Voss},
     title = {\"Uber geschlossene {Weingartensche} {Fl\"achen.}},
     journal = {Mathematische Annalen},
     pages = {42--54},
     publisher = {mathdoc},
     volume = {138},
     year = {1959},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1959__138_160700/}
}