1. The Flag Taxonomy of Open Hypermedia Systems;Østerbye,1996
2. The HyperDisco Approach to Open Hypermedia Systems;Wiil,1996
3. Hyperform: Using Extensibility to Develop Dynamic, Open and Distributed Hypertext Systems;Wiil,1992
4. A Framework for Classifying Extensibility Mechanisms in Hypermedia Systems;Wiil;Journal of Network and Computer Applications,2001
5. Integrating Open Hypermedia Systems with the World Wide Web;Anderson,1997