@article{1979-dekoninck ,author={Jean-Marie De Koninck and Douglas Hensley} ,ISSN={0019--5839} ,journal={Journal of the Indian Mathematical Society} ,MR={81k:10065} ,pages={353--365} ,title={{Sums taken over $n\le x$ with prime factors $\le y$ of $z^{\Omega(n)}$, and their derivatives with respect to $z$}} ,volume={42} ,year={1979} }