@article{10_4064_aa143_1_3,
     author = {Jan-Christoph Schlage-Puchta},
     title = {Sumsets avoiding squarefree integers},
     journal = {Acta Arithmetica},
     pages = {51--57},
     year = {2010},
     volume = {143},
     number = {1},
     doi = {10.4064/aa143-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa143-1-3/}
}