@article{10_4064_aa8332_11_2016,
     author = {Dmitrii Zhelezov},
     title = {Discrete spheres and arithmetic progressions in product sets},
     journal = {Acta Arithmetica},
     pages = {235--248},
     publisher = {mathdoc},
     volume = {178},
     number = {3},
     year = {2017},
     doi = {10.4064/aa8332-11-2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa8332-11-2016/}
}