@article{MM2_1986__54_155100,
     author = {Gudlaugur Thorbergsson},
     title = {Straffe {Untermannigfaltigkeiten} in konvexen {Hyperfl\"achen.}},
     journal = {Manuscripta mathematica},
     pages = {1--16},
     publisher = {mathdoc},
     volume = {54},
     year = {1986},
     zbl = {0587.53056},
     url = {http://geodesic.mathdoc.fr/item/MM2_1986__54_155100/}
}