@article{MSH_1970__30__35_0,
     author = {Eytan, M.},
     title = {Convexit\'e dans les ensembles ordonn\'es},
     journal = {Math\'ematiques et sciences humaines},
     pages = {35--42},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {30},
     year = {1970},
     mrnumber = {282193},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1970__30__35_0/}
}