@article{GDZPPN002488639,
title = {On the Integers n for which ...(n) = k (II).},
journal = {Monatshefte f\"ur Mathematik},
volume = {116},
year = {1993},
pages = {175-196},
zbl = {0793.11024},
url = {http://dml.mathdoc.fr/item/GDZPPN002488639}
}
Delange, Hubert. On the Integers n for which ...(n) = k (II).. Monatshefte für Mathematik, Tome 116 (1993) pp. 175-196. http://gdmltest.u-ga.fr/item/GDZPPN002488639/