@article{1183502429, author = {Sz\'asz, Otto}, title = {On the order of the partial sums of Fourier power series}, journal = {Bull. Amer. Math. Soc.}, volume = {46}, number = {11}, year = {1940}, pages = { 108-112}, language = {en}, url = {http://dml.mathdoc.fr/item/1183502429} }
Szász, Otto. On the order of the partial sums of Fourier power series. Bull. Amer. Math. Soc., Tome 46 (1940) no. 11, pp. 108-112. http://gdmltest.u-ga.fr/item/1183502429/