Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AM2_1972__8_136302, author = {R.L. Hall}, title = {On {Single-Product} {Functions} with {Rotational} {Symmetry.}}, journal = {Aequationes mathematicae}, pages = {281--286}, publisher = {mathdoc}, volume = {8}, year = {1972}, zbl = {0261.39006}, url = {http://geodesic.mathdoc.fr/item/AM2_1972__8_136302/} }
R.L. Hall. On Single-Product Functions with Rotational Symmetry.. Aequationes mathematicae, Tome 8 (1972), pp. 281-286. http://geodesic.mathdoc.fr/item/AM2_1972__8_136302/