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Bookstein, A.; Klein, S.T.: Compression, information theory, and grammars : a unified approach (1990)
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Fraenkel, A.S.; Klein, S.T.: Information retrieval from annotated texts (1999)
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Bookstein, A.; Klein, S.T.; Raita, T.: Clumping properties of content-bearing words (1998)
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Klein, S.T.: Processing queries with metrical constraints in XML-based IR systems (2008)
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Klein, S.T.: On the use of negation in Boolean IR queries. (2009)
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