@article{MSH_1969__28__5_0,
     author = {Barbut, M.},
     title = {Interm\'ediarit\'e},
     journal = {Math\'ematiques et sciences humaines},
     pages = {5--6},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {28},
     year = {1969},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1969__28__5_0/}
}