@article{JMPA_1877_3_3__153_0,
     author = {Selling, \'Edouard},
     title = {Des formes quadratiques binaires et ternaires},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {153--206},
     publisher = {Gauthier-Villars},
     volume = {3e s{\'e}rie, 3},
     year = {1877},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1877_3_3__153_0/}
}