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Thun, H.-P.: "At your fingertip"? : Auskunfts- und Informationsdienst bei uns noch Entwicklungsland (1970) 0.02

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Source: Bücherei und Bildung. 22(1970), S.63-71

Swope, M.J.; Katzer, J.: Why don't they ask questions? (1972) 0.01

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Source: RQ. 12(1972), S.161-166

Slavens, T.; Horn, B.: Computer assisted instruction in education of reference librarians (1975) 0.01

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Source: Proceedings of the American Society for Information Science. 12(1975), S.68

Grogan, D.: Practical reference work (1979) 0.01

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Date: 15. 4.2005 12:21:04

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