@inproceedings{HT-2004-McGuffinS,
	author        = "Michael J. McGuffin and Monica M. C. Schraefel",
	booktitle     = "{Proceedings of the 15th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/1012807.1012852",
	isbn          = "1-58113-848-2",
	pages         = "153--162",
	publisher     = "{ACM}",
	title         = "{A comparison of hyperstructures: zzstructures, mSpaces, and polyarchies}",
	year          = 2004,
}