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2. Information and knowledge: An evolutionary framework for information science;Bates;Information Research,2005
3. Fundamental forms of information;Bates;Journal of the American Society for Information Science and Technology,2006
4. Hjørland's critique of Bates’ work on defining information;Bates;Journal of the American Society for Information Science and Technology,2008
5. The cognitive viewpoint in information science;Belkin;Journal of Information Science,1990