@article{JRAM_1842__24_183237,
     author = {G. Lejeune Dirichlet},
     title = {Recherches sur les formes quadratiques \`a coefficients et \`a ind\'etermin\'ees complexes. {Premi\`ere} partie.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {291--371},
     publisher = {mathdoc},
     volume = {24},
     year = {1842},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1842__24_183237/}
}