@article{GDZPPN002180995,
title = {The average order of the number of generalised integers representable as a product of a prime and a square.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {218},
year = {1965},
pages = {64-68},
zbl = {0125.30004},
url = {http://dml.mathdoc.fr/item/GDZPPN002180995}
}
Horadam, E.M. The average order of the number of generalised integers representable as a product of a prime and a square.. Journal für die reine und angewandte Mathematik, Tome 218 (1965) pp. 64-68. http://gdmltest.u-ga.fr/item/GDZPPN002180995/