@article{MAN_1964__153_161135,
     author = {C.J. NEUGEBAUER},
     title = {Symmetrie and {Smooth} {Functions} of {Several} {Variables.}},
     journal = {Mathematische Annalen},
     pages = {285--292},
     publisher = {mathdoc},
     volume = {153},
     year = {1964},
     zbl = {0115.27301},
     url = {http://geodesic.mathdoc.fr/item/MAN_1964__153_161135/}
}