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1Published 1996“...HQ 792 .N5 .W357 1996...”
Book -
2Published 1990“...HQ 793 .W927 1990...”
Conference Proceeding Book -
3Published 1998“...HQ 799 .N52 .C5 .N867 1998...”
Conference Proceeding Book -
4Published 1990“...HQ 793 .W9271 1990...”
Conference Proceeding Book