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Chowdhury, S.; Chowdhury, G.G.: Text retrieval system : an overview (1992)
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Rowley, J.: Setting the scene (1994)
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Vaughan, L.: New measurements for search engine evaluation proposed and tested (2004)
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Ellsbury, S.H.; Roberts, L.: Selected list of software for organizing bibliographic references and creating bibliographies (1992)
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Boyce, B.R.; McLain, J.P.: Entry point depth and online search using a controlled vocabulary (1989)
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