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"Direct Proofs of the Undecidability of the Equivalence Problem for ..."
Grzegorz Rozenberg (1972)
- Grzegorz Rozenberg:
Direct Proofs of the Undecidability of the Equivalence Problem for Sentential Forms of Linear Context-Free Grammars and the Equivalence Problem for 0L Systems. Inf. Process. Lett. 1(6): 233-235 (1972)

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