%0 Journal Article %A Lukáš, Roman %A Meduna, Alexander %T Multigenerative grammar systems and matrix grammars %J Kybernetika %D 2010 %P 68-82 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2010__46_1_a4/ %G en %F KYB_2010__46_1_a4