@article{ASENS_1890_3_7__323_0,
     author = {Darboux, Gaston},
     title = {Sur le d\'eplacement d'une figure invariable},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {323--326},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 7},
     year = {1890},
     doi = {10.24033/asens.344},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.344/}
}