@article{05015704,
title = {Mean value of Piltz' function over integers free of large prime factors.},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {73(87)},
year = {2003},
pages = {37-56},
doi = {10.2298/PIM0374037N},
zbl = {1085.11045},
language = {en},
url = {http://dml.mathdoc.fr/item/05015704}
}
Nyandwi, Servat. Mean value of Piltz' function over integers free of large prime factors.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 73(87) (2003) pp. 37-56. doi : 10.2298/PIM0374037N. http://gdmltest.u-ga.fr/item/05015704/