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@article{MAN_1883__22_157095, author = {Du Bois-Reymond}, title = {Ueber die {Integration} der trigonometrischen {Reihe}}, journal = {Mathematische Annalen}, pages = {260--268}, publisher = {mathdoc}, volume = {22}, year = {1883}, zbl = {15.0184.02}, url = {http://geodesic.mathdoc.fr/item/MAN_1883__22_157095/} }
Du Bois-Reymond. Ueber die Integration der trigonometrischen Reihe. Mathematische Annalen, Tome 22 (1883), pp. 260-268. http://geodesic.mathdoc.fr/item/MAN_1883__22_157095/