@article{10_1017_S0017089500031724, author = {Harman, Glyn}, title = {A problem of {Hooley} in {Diophantine} approximation}, journal = {Glasgow mathematical journal}, pages = {299--308}, year = {1996}, volume = {38}, number = {3}, doi = {10.1017/S0017089500031724}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500031724/} }