@article{deBra02,
	title = {Adaptive Educational Hypermedia on the Web},
	author = {P. de Bra},
	journal = {Communications of the ACM},
	number = {5},
	pages = {60--61},
	volume = {45},
	year = {2002},
	biburl = {http://www.bibsonomy.org/bibtex/2b87492c927926f9892ccf340a0ebcc88/aschmidt},
	keywords = {ah context }
}