@article{JTNB_2019__31_3_573_0,
     author = {Murphy, Brendan and Rudnev, Misha and Shkredov, Ilya and Shteinikov, Yuri},
     title = {On the few products, many sums problem},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {573--602},
     publisher = {Soci\'et\'e Arithm\'etique de Bordeaux},
     volume = {31},
     number = {3},
     year = {2019},
     doi = {10.5802/jtnb.1095},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jtnb.1095/}
}