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Published 1979
Government Document
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Published 1983
Conference Proceeding
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Published 1998
Conference Proceeding
Book
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Published 2004
Conference Proceeding
Book
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by Sparck Jones, Karen, 1935-
Published 1971
Published 1971
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Published 1982
Conference Proceeding
Book
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by Taylor, Robert S.
Published 1986
Published 1986
Book
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