@article{MSH_1971__34__27_0,
     author = {Barbault, M. C. and Descl\'es, J. P.},
     title = {Vers une formalisation des grammaires transformationnelles},
     journal = {Math\'ematiques et sciences humaines},
     pages = {27--41},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {34},
     year = {1971},
     mrnumber = {300827},
     zbl = {0229.68031},
     language = {fr},
     url = {http://archive.numdam.org/item/MSH_1971__34__27_0/}
}