@article{MZ_1969__111_171212,
     author = {Erhard Heinz and Friedrich Tomi},
     title = {Zu einem {Satz} von {Hildebrandt} \"uber das {Randverhalten} von {Minimalfl\"achen.}},
     journal = {Mathematische Zeitschrift},
     pages = {372--386},
     publisher = {mathdoc},
     volume = {111},
     year = {1969},
     zbl = {0172.38601},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__111_171212/}
}