@article{1183422551, author = {Gronwall, T. H.}, title = {On the summability of Fourier's series}, journal = {Bull. Amer. Math. Soc.}, volume = {20}, number = {3}, year = {1913}, pages = { 139-146}, language = {en}, url = {http://dml.mathdoc.fr/item/1183422551} }
Gronwall, T. H. On the summability of Fourier's series. Bull. Amer. Math. Soc., Tome 20 (1913) no. 3, pp. 139-146. http://gdmltest.u-ga.fr/item/1183422551/