Content based navigation in an open hypermedia environment

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\begin{bibtex} @article{DBLP:journals/ivc/LewisWGDH98, title={Content based navigation in an open hypermedia environment}, pages={921-929}, year={1998}, volume={16}, journal={Image Vision Comput.}, number={12-13}, ee={http://dx.doi.org/10.1016/S0262-8856(98)00057-2}, url={http://www.informatik.uni-trier.de/~ley/db/journals/ivc/ivc16.html#LewisWGDH98}, author={Paul H. Lewis and Rob Wilkins and Steve Griffiths and Hugh C. Davis and Wendy Hall} }\end{bibtex}