1. Data elements and interchange formats — information interchange — representation of dates and times, ISO standard 8601:1988.
2. HTML 4.0 specification, available online at http://www.w3.org/TR/REC-html40/
3. Resource description framework, available online at http://www.w3.org/RDF/
4. DAV searching and locating, July 1998, IETF Working Group, available online at http://www.ics.uci.edu/pub/ietf/dasl/
5. V. Balasubramanian, State of the art review on hypermedia issues and applications, available online at http://eies.njit.edu/ 333/review/hyper.html