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Cawkell, A.E.: Developments in indexing picture collections (1993)
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Enser, P.G.B.: Pictorial information retrieval (1995)
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Walker, A.: Australia's pictorial collections on interactive videodisc (1989)
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Cassi, L.: Relational tools to manage pictorial information (1992)
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Stephan, W.: ¬Die Deutsche Bibliothek : the national archive for electronic media? (1996)
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