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Cleveland, D.B.; Cleveland, A.D.: Introduction to abstracting and indexing (1990)
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Lancaster, F.W.: Indexing and abstracting in theory and practice (1991)
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Lancaster, F.W.: Indexing and abstracting in theory and practice (1998)
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Cremmins, E.T.: ¬The art of abstracting (1996)
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Endres-Niggemeyer, B.: Summarizing information (1998)
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