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@article{MZ_1952__56_169292, author = {B.N. Prasad and U.N. Singh}, title = {On the strong summability of the derived {Fourier} series and its conjugate series.}, journal = {Mathematische Zeitschrift}, pages = {280--288}, publisher = {mathdoc}, volume = {56}, year = {1952}, zbl = {0047.06904}, url = {http://geodesic.mathdoc.fr/item/MZ_1952__56_169292/} }
B.N. Prasad; U.N. Singh. On the strong summability of the derived Fourier series and its conjugate series.. Mathematische Zeitschrift, Tome 56 (1952), pp. 280-288. http://geodesic.mathdoc.fr/item/MZ_1952__56_169292/