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  1. Fenichel, C.H.; Hogan, T.H.: Online searching : a primer (1980) 10.27
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    Author
    Fenichel, C.H.
  2. Fenichel, C.H.: Online information retrieval : identification of measures that discriminate among users with different levels of types of experience (1979) 10.27
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    Author
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  3. Fenichel, C.H.: ¬The Interneted library system (1994) 10.27
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