@inproceedings{CHI-2005-IqbalAZB,
	author        = "Shamsi T. Iqbal and Piotr D. Adamczyk and Xianjun Sam Zheng and Brian P. Bailey",
	booktitle     = "{Proceedings of the 23rd ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1054972.1055016",
	isbn          = "1-58113-998-5",
	pages         = "311--320",
	publisher     = "{ACM}",
	title         = "{Towards an index of opportunity: understanding changes in mental workload during task execution}",
	year          = 2005,
}