@article{MZ_1967__97_170708,
     author = {Hans Friedrich M\"unzner},
     title = {\"Uber {Fl\"achen} mit einer {Weingartenschen} {Ungleichung.}},
     journal = {Mathematische Zeitschrift},
     pages = {123--139},
     publisher = {mathdoc},
     volume = {97},
     year = {1967},
     zbl = {0148.15003},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__97_170708/}
}