@article{MAN_1983__263_163758,
     author = {Helmut Reckziegel and Erich Backes},
     title = {On {Symmetrie} {Submanifolds} of {Spaces} of {Constant} {Curvature.}},
     journal = {Mathematische Annalen},
     pages = {419--434},
     publisher = {mathdoc},
     volume = {263},
     year = {1983},
     zbl = {0499.53045},
     url = {http://geodesic.mathdoc.fr/item/MAN_1983__263_163758/}
}