@article{JMPA_1865_2_10__209_0,
     author = {Bachmann, Paul},
     title = {Sur la th\'eorie des substitutions, th\`ese d\'edi\'ee \`a {M.} {\'Edouard} {Kummer}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {209--233},
     publisher = {Gauthier-Villars},
     volume = {2e s{\'e}rie, 10},
     year = {1865},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1865_2_10__209_0/}
}