@article{JMPA_1866_2_11__110_0, author = {Jordan, Camille}, title = {Des contours trac\'es sur les surfaces}, journal = {Journal de Math\'ematiques Pures et Appliqu\'ees}, pages = {110--130}, publisher = {Gauthier-Villars}, volume = {2e s{\'e}rie, 11}, year = {1866}, language = {fr}, url = {http://archive.numdam.org/item/JMPA_1866_2_11__110_0/} }