Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1953__1_165494, author = {Arne BEURLING}, title = {A theorem on functions defined on a semi-group}, journal = {Mathematica Scandinavica}, pages = {127--130}, publisher = {mathdoc}, volume = {1}, year = {1953}, zbl = {0050.33701}, url = {http://geodesic.mathdoc.fr/item/MS2_1953__1_165494/} }
Arne BEURLING. A theorem on functions defined on a semi-group. Mathematica Scandinavica, Tome 1 (1953), pp. 127-130. http://geodesic.mathdoc.fr/item/MS2_1953__1_165494/