1. Fox, E., Urs, S., Cronin, B. (ed.): Digital Libraries. Annual Review of Information Science and Technology 36(12), 503–589 (2002)
2. Fox, E., Feizbadi, F., Moxley, J., Weisser, C. (eds.): The ETD Sourcebook: Theses and Dissertations in the Electronic Age. Marcel Dekker, New York (2004) (in press)
3. National Information Standards Organization: Z39.50: Information Retrieval (Z39.50): Application Service Definition and Protocol Specification. NISO Press, Bethesda (1995)
4. Moen, W.E.: Accessing Distributed Cultural Heritage Information. CACM 41(4), 45–48 (1998)
5. Arms, W.Y.: Digital Libraries. MIT Press, Cambridge (2000)