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1Trafodyn Cynhadledd LlyfrCyhoeddwyd 1972“...Symposium on Applications of the Finite Element Method in Geotechnical Engineering, Vicksburg, Miss....”
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2Trafodyn Cynhadledd LlyfrCyhoeddwyd 1972“...Symposium on Applications of the Finite Element Method in Geotechnical Engineering Vicksburg, Miss....”