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D-Lib Magazine, Vol. 13, No. 3/4. (April 2007)
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Journal of the American Society for Information Science and Technology (19 October 2007)
D-Lib Magazine, Vol. 9, No. 5. (May 2003)
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Journal of Documentation, Vol. 61, No. 2. (April 2005), pp. 248-280.
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Serials Review, Vol. 30, No. 4. (2004), pp. 288-291.
Learned Publishing, Vol. 19, No. 2. (2006), pp. 85-95.
Journal of Librarianship and Information Science, Vol. 35, No. 3. (September 2003), pp. 171-187.
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Open Access: Key Strategic, Technical and Economic Aspects (2006), pp. 87-100.
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Open Access: Key Strategic, Technical and Economic Aspects (2006)