. "2"^^ . . . "11"^^ . "[38FE8D9F02A3]" . "RIV/00216305:26230/12:PU98152" . . . "P(GD102/09/H042), P(MEB041003), S, Z(MSM0021630528)" . . "1" . "First, this paper discusses tree-controlled grammars with root-to-leaf derivation-tree paths restricted by control languages. It demonstrates that if the control languages are regular, these grammars generate the family of context-free languages. Then, in a similar way, the paper introduces tree-controlled grammars with derivation-tree cuts restricted by control languages. It proves that if the cuts are restricted by regular languages, these grammars generate the family of recursively enumerable languages. In addition, it places a binary-relation-based restriction upon these grammars and demonstrate that this adi- tional restriction does not affect the generative power of these grammars." . . "Meduna, Alexandr" . . "context-free grammars, tree-controlled grammars, restricted derivation trees, paths, cuts, language families\u00A0"@en . "http://www.kybernetika.cz/content/2012/1/165" . "First, this paper discusses tree-controlled grammars with root-to-leaf derivation-tree paths restricted by control languages. It demonstrates that if the control languages are regular, these grammars generate the family of context-free languages. Then, in a similar way, the paper introduces tree-controlled grammars with derivation-tree cuts restricted by control languages. It proves that if the cuts are restricted by regular languages, these grammars generate the family of recursively enumerable languages. In addition, it places a binary-relation-based restriction upon these grammars and demonstrate that this adi- tional restriction does not affect the generative power of these grammars."@en . . . "Tree-controlled Grammars with Restrictions Placed upon Cuts and Paths" . . . . . "Kybernetika" . "Koutn\u00FD, Ji\u0159\u00ED" . "Tree-controlled Grammars with Restrictions Placed upon Cuts and Paths"@en . . . "CZ - \u010Cesk\u00E1 republika" . "RIV/00216305:26230/12:PU98152!RIV13-GA0-26230___" . "48" . "Tree-controlled Grammars with Restrictions Placed upon Cuts and Paths" . . "26230" . . . "0023-5954" . "175059" . . . "Tree-controlled Grammars with Restrictions Placed upon Cuts and Paths"@en . . . "2"^^ . .