TY  - JOUR
AU  - A. V. Gladkii
TI  - Certain algorithmic problems for context-free grammars
JO  - Algebra i logika
PY  - 1965
SP  - 5
EP  - 13
VL  - 4
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1965_4_1_a0/
LA  - ru
ID  - AL_1965_4_1_a0
ER  -