@article{ERAAMS_1999_05_a17,
     author = {Bachman, Gennady},
     title = {Exponential sums with multiplicative coefficients},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {128--135},
     publisher = {mathdoc},
     volume = {05},
     year = {1999},
     doi = {10.1090/S1079-6762-99-00071-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-99-00071-2/}
}