TY - JOUR AU - Pik, Jiří TI - A note on connections between 0L-languages and context-free languages JO - Kybernetika PY - 1979 SP - EP - 140 VL - 15 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1979__15_2_a4/ LA - en ID - KYB_1979__15_2_a4 ER -