@article{MSH_1977__60__31_0,
     author = {Coumet, E.},
     title = {Sur l'histoire des diagrammes logiques, {\guillemotleft} figures g\'eom\'etriques {\guillemotright}},
     journal = {Math\'ematiques et sciences humaines},
     pages = {31--62},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {60},
     year = {1977},
     mrnumber = {531546},
     zbl = {0404.03003},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1977__60__31_0/}
}