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@article{BUMI_1961_3_16_4_a2, author = {Varshney, O. P.}, title = {Note on $H_{2}$ summability of {Fourier} series.}, journal = {Bollettino della Unione matematica italiana}, pages = {383--385}, publisher = {mathdoc}, volume = {Ser. 3, 16}, number = {4}, year = {1961}, zbl = {0109.29304}, mrnumber = {147840}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a2/} }
Varshney, O. P. Note on $H_{2}$ summability of Fourier series.. Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 4, pp. 383-385. http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a2/