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Mendez, A.: Some considerations on the retrieval of literature based on citations (1978)
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Garfield, E.: Is citation analysis a legitime evaluation tool? (1979)
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Chubin, D.E.; Moitra, S.D.: Content analysis of references : adjunct or alternative to citation counting? (1975)
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Moravcsik, M.J.; Murugesan, P.: Some results on the function and quality of citations (1975)
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Kwok, K.L.: ¬The use of titles and cited titles as document representations for automatic classification (1975)
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