@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/}
}