@article{BSMF_1971__99__369_0,
     author = {de Mathan, Bernard},
     title = {Un probl\`eme m\'etrique d'approximation diophantienne},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {369--385},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {99},
     year = {1971},
     doi = {10.24033/bsmf.1727},
     mrnumber = {46 #5259},
     zbl = {0225.10054},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.1727/}
}