@article{10_4064_aa_95_3_225_229,
     author = {Tomasz {\L}uczak and Tomasz Schoen},
     title = {On the maximal density of sum-free sets},
     journal = {Acta Arithmetica},
     pages = {225--229},
     publisher = {mathdoc},
     volume = {95},
     number = {3},
     year = {2000},
     doi = {10.4064/aa-95-3-225-229},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-95-3-225-229/}
}