@inproceedings{HT-2006-BraSS06a,
	author        = "Paul De Bra and David Smits and Natalia Stash",
	booktitle     = "{Proceedings of the 17th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/1149941.1149942",
	isbn          = "1-59593-417-0",
	pages         = "171--195",
	publisher     = "{ACM}",
	title         = "{The Design of AHA!}",
	year          = 2006,
}