@article{CTGDC_1992__33_3_267_0,
     author = {Lafont, Y.},
     title = {Diagrammes de {Penrose} et r\'e\'ecriture en dimension $2$},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {267--275},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {33},
     number = {3},
     year = {1992},
     mrnumber = {1186951},
     zbl = {0769.68060},
     language = {fr},
     url = {http://www.numdam.org/item/CTGDC_1992__33_3_267_0/}
}