%0 Journal Article %A Hieu T. Ngo %T On an almost-prime sieve %J Acta Arithmetica %D 2019 %P 341-359 %V 191 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa171218-21-10/ %R 10.4064/aa171218-21-10 %G en %F 10_4064_aa171218_21_10