@article{AIHPA_1991__54_1_27_0,
     author = {Burdet, G. and Perrin, M.},
     title = {Proposition de structures g\'eom\'etriques {\guillemotleft} amplifi\'ees {\guillemotright} pour le traitement des syst\`emes de points mat\'eriels},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {27--42},
     publisher = {Gauthier-Villars},
     volume = {54},
     number = {1},
     year = {1991},
     mrnumber = {1102970},
     zbl = {0723.22023},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1991__54_1_27_0/}
}