@article{PIM_1982_N_S_32_46_a8,
     author = {Paul Erd\"os and Aleksandar Ivi\'c},
     title = {On {Sums} {Involving} {Reciprocials} {Of} {Certain} {Arithmetical} {Functions}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {49 },
     publisher = {mathdoc},
     volume = {_N_S_32},
     number = {46},
     year = {1982},
     url = {http://geodesic.mathdoc.fr/item/PIM_1982_N_S_32_46_a8/}
}