TY - JOUR AU - Čulík, Karel II TI - $n$-ary grammars and the description of mapping of languages JO - Kybernetika PY - 1970 SP - EP - 117 VL - 06 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1970__6_2_a2/ LA - en ID - KYB_1970__6_2_a2 ER -