@article{JMPA_1859_2_4__209_0,
     author = {Lejeune-Dirichlet, G.},
     title = {Sur la r\'eduction des formes quadratiques positives \`a trois ind\'etermin\'ees enti\`eres},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {209--232},
     publisher = {Gauthier-Villars},
     volume = {2e s{\'e}rie, 4},
     year = {1859},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1859_2_4__209_0/}
}