@article{1077472809, author = {Herriot, John G.}, title = {N\"orlund summability of multiple Fourier series}, journal = {Duke Math. J.}, volume = {11}, number = {1}, year = {1944}, pages = { 735-754}, language = {en}, url = {http://dml.mathdoc.fr/item/1077472809} }
Herriot, John G. Nörlund summability of multiple Fourier series. Duke Math. J., Tome 11 (1944) no. 1, pp. 735-754. http://gdmltest.u-ga.fr/item/1077472809/