@article{GDZPPN00237627X, title = {On the summability (C,1) of Fourier series}, journal = {Mathematische Zeitschrift}, volume = {40}, year = {1936}, pages = {496-502}, zbl = {0013.01202}, url = {http://dml.mathdoc.fr/item/GDZPPN00237627X} }
Prasad, B.N. On the summability (C,1) of Fourier series. Mathematische Zeitschrift, Tome 40 (1936) pp. 496-502. http://gdmltest.u-ga.fr/item/GDZPPN00237627X/