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Ornager, S.: View a picture : theoretical image analysis and empirical user studies on indexing and retrieval (1996)
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Casey, D.D.: Scouting new horizons : an annotated bibliography introducing subject access in visual image databases (1994)
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Chen, H.-l.; Rasmussen, E.M.: Intellectual access to images (1999)
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Hastings, S.K.: ¬An exploratory study of intellectual access to digitized art images : the information industry and the role of the Internet (1995)
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Jansen, B.J.: Searching for digital images on the web (2008)
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