@inproceedings{80ca09b52bae48c084a4faedcb3a1488,
title = "Visualizing Navigation in Educational WWW Hypertext by Introducing Partial Order and Hierarchy",
author = "O. Nyk{\"a}nen",
note = "yhdistetty e- ja ap-tietueet<br/>Contribution: organisation=mat,FACT1=1",
year = "1999",
language = "English",
pages = "951--957",
editor = "B. Collis and R. Oliver",
booktitle = "Proceedings of ED-MEDIA 1999, World Conference on Educational Multimedia, Hypermedia \& Telecommunications, Seattle, Washington, USA, 19.-24.6.1999",
}