44 |
A First-Order Axiomatization of the Theory of Finite Trees
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In: IRCS Technical Reports Series (1995)
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45 |
The equivalence of four extensions of context-free grammars
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55 |
The convergence of mildly context-sensitive grammar formalisms
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56 |
Unification-Based Tree Adjoining Grammars
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In: Technical Reports (CIS) (1991)
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