@article{BSMF_1982__110__D225_0,
     author = {Reutenauer, Christophe},
     title = {Sur les \'el\'ements inversibles de l'alg\`ebre de {Hadamard} des s\'eries rationnelles},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {225--232},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {110},
     year = {1982},
     doi = {10.24033/bsmf.1972},
     mrnumber = {84f:16001},
     zbl = {0517.13010},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1972/}
}