"Forgetting automata and context-free languages" . "409;420" . . "Forgetting automata and context-free languages" . "Forgetting automata and context-free languages"@en . . "3"^^ . . "Pl\u00E1tek, Martin" . "2"^^ . . . . . "0"^^ . "1996" . "RIV:J13/96:113200290" . . "Mr\u00E1z, Franti\u0161ek" . "Forgetting automata and context-free languages"@en . "RIV:J13/96:113200290!RIV/1998/MSM/MSM8MD0" . . "0001-5903" . "825090" . "[689FEDED9171]" . "11320" . "33" . "Jan\u010Dar, Petr" . . "Acta Informatica" .