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- author's%3a%22Arnold%2c S.E.%22 2
- authors%3a%22Arnold%2c S.E.%22 2
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Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969)
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Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969)
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