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1Published 1984“...HD 1535 .S4 .F233...”
Book -
2Published 1989“...HN 398 .S4 .S431 1987-88...”
Conference Proceeding Book -
3Published 1990“...HN 398 .S4 .S431...”
Conference Proceeding Book -
4Published 1994“...HN 398 .S4 .S4315...”
Conference Proceeding Book