@article{SDPP_1968-1969__10_2_A4_0,
     author = {Dress, Fran\c{c}ois and Mend\`es France, Michel},
     title = {Caract\'erisation des ensembles normaux dans {Z}},
     journal = {S\'eminaire Delange-Pisot-Poitou. Th\'eorie des nombres},
     note = {talk:17},
     pages = {1--5},
     publisher = {Secr\'etariat math\'ematique},
     volume = {10},
     number = {2},
     year = {1968-1969},
     mrnumber = {257000},
     zbl = {0199.37301},
     language = {fr},
     url = {http://www.numdam.org/item/SDPP_1968-1969__10_2_A4_0/}
}