@inproceedings{HT-2002-BrusilovskyR,
	author        = "Peter Brusilovsky and Riccardo Rizzo",
	booktitle     = "{Proceedings of the 13th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/513338.513345",
	isbn          = "1-58113-477-0",
	pages         = "1--10",
	publisher     = "{ACM}",
	title         = "{Map-based horizontal navigation in educational Hypertext}",
	year          = 2002,
}