4Carl Lagoze. The Open Archives Initiative Protocol for Metadata Harvesting.[2004-10-25]. http://www.openarchives.org/OAI/openarchivesprotocol.html.
5OAL.Registered Data Providers.[2004-11-03]. http://www.openarchives.org/Register/BrowseSites.
6Herbert Van de Sompel. Specification for an OAI Static Repository and an OAI Static Repository Gateway.[2004-11-01].http://www.openarchives.org/OAI/2.0/guidelines -static-repository.htm.
8Anita Coleman,Paul Bracke, Subramaniam Karthik.The Integration of Non-OAI Resources for Federated Searching in DLIST, an Eprints Repository. D-Lib Magazine,2004(10):7-8.