List of citations in Numdam for : On languages satisfying Ogden's lemma

RAIRO. Informatique théorique, Volume 12 (1978) no. 3, pp. 201-202.

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 27 (1993) no. 1, pp. 71-79.

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Volume 20 (1986) no. 4, pp. 457-471.