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@article{ELMA_1983__38_141322, author = {Kenneth R. Johnson}, title = {A result for the 'other' variable of {Ramanujan's} sum.}, journal = {Elemente der Mathematik}, pages = {122--124}, publisher = {mathdoc}, volume = {38}, year = {1983}, zbl = {0516.10002}, url = {http://geodesic.mathdoc.fr/item/ELMA_1983__38_141322/} }
Kenneth R. Johnson. A result for the 'other' variable of Ramanujan's sum.. Elemente der Mathematik, Tome 38 (1983), pp. 122-124. http://geodesic.mathdoc.fr/item/ELMA_1983__38_141322/