@article{10_4064_aa_59_3_279_290,
     author = {Marc Perret},
     title = {Multiplicative character sums and {Kummer} coverings},
     journal = {Acta Arithmetica},
     pages = {279--290},
     publisher = {mathdoc},
     volume = {59},
     number = {3},
     year = {1991},
     doi = {10.4064/aa-59-3-279-290},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-59-3-279-290/}
}