@article{10_4064_aa164_3_2,
     author = {I. D. Shkredov},
     title = {Sumsets in quadratic residues},
     journal = {Acta Arithmetica},
     pages = {221--243},
     publisher = {mathdoc},
     volume = {164},
     number = {3},
     year = {2014},
     doi = {10.4064/aa164-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa164-3-2/}
}