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Malin, M.V.: ¬The Science Citation Index : a new concept in indexing (1968)
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- Library trends. 16(1968), S.374-387
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Kessler, M.M.: Bibliographic coupling between scientific papers (1963)
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Model, F.: 'Citation indexing' und Rückwärtskatalogisierung' : Beispiele für Zitatendokumentation (1964)
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- Nachrichten für Dokumentation. 15(1964), S.122-130
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Lipetz, B.A.: Improvement of the selectivity of citation indexes to science literature throught the inclusion of citation relationship indicators (1965)
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- American documentation. 16(1965), S.81-90
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Garfield, E.; Sher, I.H.: New factors in the evaluation of scientific literature literature through citation indexing (1963)
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- American documentation. 14(1963) no.3, S.195-201
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