@article{MAN_1984__269_163947,
     author = {Joel L. Weiner},
     title = {The {Gauss} {Map} for {Surfaces} in {4-Space.}},
     journal = {Mathematische Annalen},
     pages = {541--560},
     publisher = {mathdoc},
     volume = {269},
     year = {1984},
     zbl = {0536.53008},
     url = {http://geodesic.mathdoc.fr/item/MAN_1984__269_163947/}
}