@article{MSH_1981__73__5_0,
     author = {Leclerc, Bruno},
     title = {Description combinatoire des ultram\'etriques},
     journal = {Math\'ematiques et sciences humaines},
     pages = {5--37},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {73},
     year = {1981},
     mrnumber = {623034},
     zbl = {0476.05079},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1981__73__5_0/}
}