Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1923__16_174954, author = {M. Mathias}, title = {\"Uber positive {Fourier-Integrale}}, journal = {Mathematische Zeitschrift}, pages = {103--125}, publisher = {mathdoc}, volume = {16}, year = {1923}, zbl = {49.0207.03}, url = {http://geodesic.mathdoc.fr/item/MZ_1923__16_174954/} }
M. Mathias. Über positive Fourier-Integrale. Mathematische Zeitschrift, Tome 16 (1923), pp. 103-125. http://geodesic.mathdoc.fr/item/MZ_1923__16_174954/