@article{10_4064_aa119_2_4,
     author = {Guillaume Bordes},
     title = {Sum-sets of small upper density},
     journal = {Acta Arithmetica},
     pages = {187--200},
     publisher = {mathdoc},
     volume = {119},
     number = {2},
     year = {2005},
     doi = {10.4064/aa119-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa119-2-4/}
}