@article{AIHPA_1981__35_3_225_0,
     author = {Houard, J.-C.},
     title = {Sur la description intrins\`eque des grandeurs dimensionnelles},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {225--252},
     publisher = {Gauthier-Villars},
     volume = {35},
     number = {3},
     year = {1981},
     mrnumber = {642085},
     zbl = {0476.70001},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPA_1981__35_3_225_0/}
}