@inproceedings{HT-2001-Luz,
	author        = "Saturnino Luz",
	booktitle     = "{Proceedings of the 12th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/504216.504227",
	pages         = "31--32",
	publisher     = "{ACM}",
	title         = "{Y-notes: unobtrusive devices for hypermedia annotation}",
	year          = 2001,
}