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1Trafodyn Cynhadledd LlyfrCyhoeddwyd 1997“...International Conference on Rewriting Techniques and Applications...”
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2Trafodyn Cynhadledd LlyfrCyhoeddwyd 1985“...International Conference on Rewriting Techniques and Applications...”
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3Trafodyn Cynhadledd LlyfrCyhoeddwyd 1987“...International Conference on Rewriting Techniques and Applications...”
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4Trafodyn CynhadleddCyhoeddwyd 1985“...International Conference on Rewriting Techniques and Applications...”
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5Trafodyn Cynhadledd LlyfrCyhoeddwyd 1993“...International Conference on Rewriting Techniques and Applications Montreal, Que....”
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6Trafodyn Cynhadledd LlyfrCyhoeddwyd 1989“...International Conference on Rewriting Techniques and Applications Chapel Hill, N.C....”