@article{MSH_1982__77__5_0,
     author = {Descles, J. P.},
     title = {Avant propos},
     journal = {Math\'ematiques et sciences humaines},
     pages = {5--6},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {77},
     year = {1982},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1982__77__5_0/}
}