@article{10_4064_cm_79_2_249_272,
     author = {Jean-Marie de Koninck and Jacques Grah},
     title = {Arithmetic functions and weighted averages},
     journal = {Colloquium Mathematicum},
     pages = {249--272},
     publisher = {mathdoc},
     volume = {79},
     number = {2},
     year = {1999},
     doi = {10.4064/cm-79-2-249-272},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-79-2-249-272/}
}