@article{10_4064_aa171_3_2,
     author = {Przemys{\l}aw Mazur},
     title = {A structure theorem for sets of small popular doubling},
     journal = {Acta Arithmetica},
     pages = {221--239},
     publisher = {mathdoc},
     volume = {171},
     number = {3},
     year = {2015},
     doi = {10.4064/aa171-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa171-3-2/}
}