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1Published 1994“...HD 8039 .F652 .O3 .W926...”
Conference Proceeding Book -
2Published 1990“...HE 8689.2 .P117...”
Conference Proceeding Book -
3Published 1991“...HB 3692.55 .A3 .P8312...”
Book -
4Published 1993“...HB 2782.55 .A3 .E96...”
Conference Proceeding Book -
5Published 1997“...HQ 1865.6 .W8724...”
Conference Proceeding Book