@article{MSH_1990__112__49_0,
     author = {Le Conte de Poly-Barbut, Claude},
     title = {Le diagramme du treillis permuto\`edre est intersection des diagrammes de deux produits directs d'ordres totaux},
     journal = {Math\'ematiques informatique et sciences humaines},
     pages = {49--53},
     publisher = {Ecole des hautes-\'etudes en sciences sociales},
     volume = {112},
     year = {1990},
     zbl = {0788.06002},
     language = {fr},
     url = {http://archive.numdam.org/item/MSH_1990__112__49_0/}
}