@inproceedings{CHI-2011-NackeKLM,
	author        = "Lennart E. Nacke and Michael Kalyn and Calvin Lough and Regan L. Mandryk",
	booktitle     = "{Proceedings of the 29th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1978942.1978958",
	isbn          = "978-1-4503-0228-9",
	pages         = "103--112",
	publisher     = "{ACM}",
	title         = "{Biofeedback game design: using direct and indirect physiological control to enhance game interaction}",
	year          = 2011,
}