@inproceedings{HT-2000-DouglasH,
	author        = "Yellowlees Douglas and Andrew Hargadon",
	booktitle     = "{Proceedings of the 11th Conference on Hypertext and Hypermedia}",
	doi           = "10.1145/336296.336354",
	pages         = "153--160",
	publisher     = "{ACM}",
	title         = "{The pleasure principle: immersion, engagement, flow}",
	year          = 2000,
}