Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1886__26_157178, author = {Pringsheim}, title = {Ueber die {Multiplication} trigonometrischer {Reihen}}, journal = {Mathematische Annalen}, pages = {157--166}, publisher = {mathdoc}, volume = {26}, year = {1886}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MAN_1886__26_157178/} }
Pringsheim. Ueber die Multiplication trigonometrischer Reihen. Mathematische Annalen, Tome 26 (1886), pp. 157-166. http://geodesic.mathdoc.fr/item/MAN_1886__26_157178/