Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{KYB_1968__4_2_a0, author = {\v{C}ul{\'\i}k, Karel}, title = {Some theorems on labelled bracketings used in transformational grammars}, journal = {Kybernetika}, pages = {--92}, publisher = {mathdoc}, volume = {04}, number = {2}, year = {1968}, zbl = {0157.02001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/KYB_1968__4_2_a0/} }
Čulík, Karel. Some theorems on labelled bracketings used in transformational grammars. Kybernetika, Tome 04 (1968) no. 2, p. 92. http://geodesic.mathdoc.fr/item/KYB_1968__4_2_a0/