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1Published 1984“...HQ 1870.9 .W8721...”
Book -
2Published 1986“...HQ 1240.5 .D44 .V831...”
Book -
3Published 1994“...HN 980 .W0111...”
Conference Proceeding Book -
4Published 1990“...HN 981 .C6 .R9483...”
Conference Proceeding Book -
5Published 1996“...HQ 1106 .U054...”
Book