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@article{PORMA_1968__27_3_115068, author = {Maravic, Manojlo}, title = {On the summability of multiple {Fourier} series}, journal = {Portugaliae mathematica}, pages = {127--135}, publisher = {mathdoc}, volume = {27}, number = {3}, year = {1968}, mrnumber = {0270068}, zbl = {0202.35102}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1968__27_3_115068/} }
Maravic, Manojlo. On the summability of multiple Fourier series. Portugaliae mathematica, Tome 27 (1968) no. 3, pp. 127-135. http://geodesic.mathdoc.fr/item/PORMA_1968__27_3_115068/