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1 - Proceedings of the 18th Symposium on Ring theory : Held at the Sansen-Sô, Yamaguchi July 29-31, 1985 |
2 - Proceedings of the 27th Symposium on Ring theory : held at Yamaguchi University, Yamaguchi July 23 - 25, 1994 |
1 - Proceedings of the 18th Symposium on Ring theory : Held at the Sansen-Sô, Yamaguchi July 29-31, 1985 |
2 - Proceedings of the 27th Symposium on Ring theory : held at Yamaguchi University, Yamaguchi July 23 - 25, 1994 |