@article{MSH_1986__94__5_0,
     author = {Lacheny, A. and Petit, J. L. and T\'erouanne, E.},
     title = {Vous avez dit proportionnelle ?},
     journal = {Math\'ematiques et sciences humaines},
     pages = {5--32},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {94},
     year = {1986},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1986__94__5_0/}
}