@article{MZ_1967__95_170637,
     author = {Stefan Hildebrandt},
     title = {\"Uber {Minimalfl\"achen} mit freiem {Rand.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--19},
     publisher = {mathdoc},
     volume = {95},
     year = {1967},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__95_170637/}
}