@article{MAN_1980__247_163349,
     author = {Dirk Ferus},
     title = {Symmetrie {Submanifolds} of {Euclidean} {Space.}},
     journal = {Mathematische Annalen},
     pages = {81--94},
     year = {1980},
     volume = {247},
     zbl = {0446.53041},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__247_163349/}
}