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Beare, G.: Local newspaper indexing projects and products (1989)
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Geus, D. de; Roosmalen, M. van: Practical experiences ...: automated classification control (1991)
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Bakewell, K.G.B.; Rowland, G.: Indexing and abstracting (1993)
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Tyagi, K.G.; Lai, M.; Singh, M.: Indexing of Indian newspapers : brief survey (1990)
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Hedin, L.; Mering, M.; Pitts, L.M.: Newspapers : yesterday, today, tomorrow (1998)
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