TY  - JOUR
AU  - Boonyavatana, R.
AU  - Slutzki, G.
TI  - Ogden's lemma for nonterminal bounded languages
JO  - RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
PY  - 1986
SP  - 457
EP  - 471
VL  - 20
IS  - 4
PB  - AFCET - Gauthier-Villars
PP  - Paris
UR  - http://www.numdam.org/item/ITA_1986__20_4_457_0/
LA  - en
ID  - ITA_1986__20_4_457_0
ER  -