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1Published 1975“...HN 723.5 .S678...”
Book -
2Published 1976“...HN 723 .C748...”
Conference Proceeding Book -
3Published 1994“...HF 1455 .P769...”
Book -
4
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5Published 1995“...HD 9710 .A2 .F712...”
Conference Proceeding Book -
6