@article{AIHPA_1970__12_3_307_0,
     author = {Bel, Luis},
     title = {Dynamique des syst\`emes de {N} particules ponctuelles en relativit\'e restreinte},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {307--321},
     publisher = {Gauthier-Villars},
     volume = {12},
     number = {3},
     year = {1970},
     mrnumber = {266567},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1970__12_3_307_0/}
}