On an additive problem of Erdős and Straus, 2
Structure theory of set addition, Astérisque, no. 258 (1999), 8 p. 
@incollection{AST_1999__258__141_0,
     author = {Deshouillers, Jean-Marc and Freiman, Gregory A.},
     title = {On an additive problem of Erd\H{o}s and Straus, 2},
     booktitle = {Structure theory of set addition},
     editor = {Deshouilliers Jean-Marc and Landreau Bernard and Yudin Alexander A.},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {258},
     year = {1999},
     zbl = {0979.11005},
     mrnumber = {1701192},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1999__258__141_0/}
}
Deshouillers, Jean-Marc; Freiman, Gregory A. On an additive problem of Erdős and Straus, 2, dans Structure theory of set addition, Astérisque, no. 258 (1999), 8 p. http://archive.numdam.org/item/AST_1999__258__141_0/

[1] Deshouillers J-M. and Freiman G. A., On an additive problem of Erdős and Straus, 1, Israël J. Math., 92, 1995, 33-43. | Article | MR 1357744 | Zbl 0841.11005

[2] Erdős P., Some remarks on number theory, III. Mat. Lapok 13, 1962, 28-38. | MR 144871 | Zbl 0123.25503

[3] Erdős P., Nicolas J-L., Sarközy A., Sommes de sous-ensembles, Sem. Th. Nb. Bordeaux 3, 1991, 55-72. | Article | EuDML 93536 | Numdam | MR 1116101 | Zbl 0742.11008

[4] Freiman G. A., The addition of finite sets, 1, (Russian), Izv. Vyss. Ucebn. Zaved. Matematika, 6(13), 1959, 202-213. | MR 126388 | Zbl 0096.25904

[5] Straus E. G., On a problem in combinatorial number theory, J. Math. Sci., 1, 1966, 77-80. | MR 201411 | Zbl 0149.28503