@article{JMPA_1879_3_5__345_0,
     author = {Jordan, Camille},
     title = {Sur les covariants des formes binaires. - {Deuxi\`eme} m\'emoire},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {345--378},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 5},
     year = {1879},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1879_3_5__345_0/}
}