@article{10_4153_CMB_1958_014_1,
     author = {Erd\H{o}s, P.},
     title = {Asymptotic {Formulas} for {Some} {Arithmetic} {Functions}},
     journal = {Canadian mathematical bulletin},
     pages = {149--153},
     year = {1958},
     volume = {1},
     number = {3},
     doi = {10.4153/CMB-1958-014-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1958-014-1/}
}