@article{10_4064_aa_83_1_17_30, author = {C. Hooley}, title = {On the {Barban-Davenport-Halberstam} theorem: {IX}}, journal = {Acta Arithmetica}, pages = {17--30}, publisher = {mathdoc}, volume = {83}, number = {1}, year = {1998}, doi = {10.4064/aa-83-1-17-30}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-83-1-17-30/} }