@article{1077375073, author = {Neugebauer, C. J.}, title = {Symmetric, continuous, and smooth functions}, journal = {Duke Math. J.}, volume = {31}, number = {1}, year = {1964}, pages = { 23-31}, language = {en}, url = {http://dml.mathdoc.fr/item/1077375073} }
Neugebauer, C. J. Symmetric, continuous, and smooth functions. Duke Math. J., Tome 31 (1964) no. 1, pp. 23-31. http://gdmltest.u-ga.fr/item/1077375073/