@article{SM_2017_208_12_a6,
     author = {I. D. Shkredov},
     title = {Some remarks on sets with small quotient set},
     journal = {Sbornik. Mathematics},
     pages = {1854--1868},
     publisher = {mathdoc},
     volume = {208},
     number = {12},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2017_208_12_a6/}
}