@article{SD_1953-1954__7__A7_0,
     author = {Poitou, G.},
     title = {Approximations diophantiennes et groupe modulaire},
     journal = {S\'eminaire Dubreil. Alg\`ebre et th\'eorie des nombres},
     note = {talk:7},
     pages = {1--6},
     publisher = {Secr\'etariat math\'ematique},
     volume = {7},
     year = {1953-1954},
     language = {fr},
     url = {http://archive.numdam.org/item/SD_1953-1954__7__A7_0/}
}