@article{BSMF_1955__83__103_0,
     author = {Thierrin, Gabriel},
     title = {Contribution \`a la th\'eorie des \'equivalences dans les demi-groupes},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {103--159},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {83},
     year = {1955},
     doi = {10.24033/bsmf.1458},
     mrnumber = {17,584a},
     zbl = {0065.00703},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1458/}
}