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Welsh, T.: Simplifying hypermedia usage for learners : the effect of visual and manual filtering capabilities on efficiency, perceptions of usability, and performance (1995)
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Welsh, S.: OMNI - alternative approaches to Internet metadata (1996)
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Welsh, A.: ¬The rare books catalog and the scholarly database (2016)
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Knight, G.N.: Indexing, the art of : a guide to the indexing of books and periodicals (1979)
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Armstrong, C.J.; Wheatley, A.: Writing abstracts for online databases : results of database producers' guidelines (1998)
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