%0 Journal Article %A Kostolanský, Eduard %T Comments on effective and unambiguous context-free languages %J Kybernetika %D 1969 %P -185 %V 05 %N 3 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/KYB_1969__5_3_a0/ %G en %F KYB_1969__5_3_a0