@article{10_4064_aa132_3_4,
     author = {Michel Balazard and Mongi Naimi and Y.-F. S. P\'etermann},
     title = {\'Etude d'une somme arithm\'etique multiple li\'ee
 \`a la fonction de {M\"obius}},
     journal = {Acta Arithmetica},
     pages = {245--298},
     publisher = {mathdoc},
     volume = {132},
     number = {3},
     year = {2008},
     doi = {10.4064/aa132-3-4},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa132-3-4/}
}