Voir la notice de l'article provenant de la source Math-Net.Ru
@article{AL_1965_4_1_a0, author = {A. V. Gladkii}, title = {Certain algorithmic problems for context-free grammars}, journal = {Algebra i logika}, pages = {5--13}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1965_4_1_a0/} }
A. V. Gladkii. Certain algorithmic problems for context-free grammars. Algebra i logika, Tome 4 (1965) no. 1, pp. 5-13. http://geodesic.mathdoc.fr/item/AL_1965_4_1_a0/