Shapiro, C; Varian, H. R. Information rules : a strategic guide to the network economy. Boston : Harvard Business School Press, 1999. Van de Sompel, Herbert ; Lagoze, Carl. “The Santa Fe convention of the Open Archives Initiative”. En: D-Lib, 2000, Febrero, v. 6, n. 2. Van de Sompel, Herbert ; Lagoze, Carl. “The Open Archives Initiative: Building a low-barrier interoperability framework”. En: JCDL, 2001. Van de Sompel, Herbert ; Lagoze, Carl (ed.) “The Open Archives Initiative Protocol for Metadata Harvesting”. Consultado el: 10-01-2003 http://www.openarchives.org/OAI/2.0/openarchivesprotocol.htm Van de Sompel, Herbert ; Lagoze, Carl. “Notes from the Interoperability Front: A Progress Report on the Open Archives Initiative”. En: ECDL, 2002. Harnad, Stevan. “Free at Last: The Future of Peer-Reviewed Journals,” En: D-Lib, 1999, v. 5, n. 12.