@article{MSH_1971__35__39_0,
     author = {Fliess, Michel},
     title = {S\'eries formelles},
     journal = {Math\'ematiques et sciences humaines},
     pages = {39--42},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {35},
     year = {1971},
     zbl = {0227.94030},
     language = {fr},
     url = {http://archive.numdam.org/item/MSH_1971__35__39_0/}
}