@article{AFST_1899_2_1_2_221_0,
     author = {Delassus, \'Etienne},
     title = {Sur l'\'equilibre des syst\`emes articul\'es},
     journal = {Annales de la Facult\'e des sciences de l'Universit\'e de Toulouse pour les sciences math\'ematiques et les sciences physiques},
     pages = {221--237},
     publisher = {Ed. Privat},
     address = {Toulouse},
     volume = {2e s{\'e}rie, 1},
     number = {2},
     year = {1899},
     language = {fr},
     url = {http://archive.numdam.org/item/AFST_1899_2_1_2_221_0/}
}