@article{MSH_1967__18__33_0,
     author = {Monjardet, B.},
     title = {Combinatoire et structures alg\'ebriques. {I}},
     journal = {Math\'ematiques et sciences humaines},
     pages = {33--40},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {18},
     year = {1967},
     mrnumber = {215738},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1967__18__33_0/}
}