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"Über ein 2-Dimensionales Thue-System mit Zwei Regeln und ..."
Lutz Priese (1979)
- Lutz Priese:
Über ein 2-Dimensionales Thue-System mit Zwei Regeln und Unentscheidbarem Wortproblem. Math. Log. Q. 25(7-12): 179-192 (1979)
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