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@article{MZ_1964__85_170285, author = {M.M. Robertson}, title = {Integrability of trigonometric series. {II.}}, journal = {Mathematische Zeitschrift}, pages = {62--67}, publisher = {mathdoc}, volume = {85}, year = {1964}, zbl = {0133.02401}, url = {http://geodesic.mathdoc.fr/item/MZ_1964__85_170285/} }
M.M. Robertson. Integrability of trigonometric series. II.. Mathematische Zeitschrift, Tome 85 (1964), pp. 62-67. http://geodesic.mathdoc.fr/item/MZ_1964__85_170285/