1. T. Berners-Lee. Universal Resource Identifiers in WWW, 1994. RFC 1630.
2. T. Berners-Lee, J. Hendler, and O. Lassila. The Semantic Web. Scientific American, May 2001.
3. N. Borenstein and N. Freed. MIME-Multipurpose Internet Mail Extension, 1993. RFC 1521.
4. B. Calder and B. Shannon. JavaBeans Activation Framework Specification Version 1.0a. Sun Microsystems, Inc., 2550 Garcia Avenue, Mountain View, CA 94042-1100 U.S.A, May 1999.
5. Microsoft Corporation. BRIDGE Reaches New Customers with Office XP Smart Tags and Real-Time Data. Technical report, Microsoft Corporation, Redmond, WA 98052-6399, USA, June 2001.