@article{MAN_1956__132_160522,
     author = {H. Helfenstein and M. Wyman},
     title = {Geodesic {Mapping} of {Minimal} {Surfaces.}},
     journal = {Mathematische Annalen},
     pages = {310--327},
     publisher = {mathdoc},
     volume = {132},
     year = {1956},
     zbl = {0074.16804},
     url = {http://geodesic.mathdoc.fr/item/MAN_1956__132_160522/}
}