Extensions de quelques théorèmes de densité
Séminaire Delange-Pisot-Poitou. Théorie des nombres, Volume 16 (1974-1975) no. 1, Talk no. 8, 2 p. 
@article{SDPP_1974-1975__16_1_A5_0,
     author = {Deza, Michel and Erd\"os, P\'al},
     title = {Extensions de quelques th\'eor\`emes de densit\'e},
     journal = {S\'eminaire Delange-Pisot-Poitou. Th\'eorie des nombres},
     publisher = {Secr\'etariat math\'ematique},
     volume = {16},
     number = {1},
     year = {1974-1975},
     note = {talk:8},
     zbl = {0316.10037},
     mrnumber = {337635},
     language = {fr},
     url = {http://www.numdam.org/item/SDPP_1974-1975__16_1_A5_0}
}

Deza, Michel; Erdös, Paul. Extensions de quelques théorèmes de densité. Séminaire Delange-Pisot-Poitou. Théorie des nombres, Volume 16 (1974-1975) no. 1, Talk no. 8, 2 p. http://www.numdam.org/item/SDPP_1974-1975__16_1_A5_0/

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