@article{1077477039, author = {Lorch, Lee}, title = {The Lebesgue constants for $(E,1)$ summation of Fourier series}, journal = {Duke Math. J.}, volume = {19}, number = {1}, year = {1952}, pages = { 45-50}, language = {en}, url = {http://dml.mathdoc.fr/item/1077477039} }
Lorch, Lee. The Lebesgue constants for $(E,1)$ summation of Fourier series. Duke Math. J., Tome 19 (1952) no. 1, pp. 45-50. http://gdmltest.u-ga.fr/item/1077477039/