@inproceedings{HCI-ACS-1993-VekkerAY,
	author        = "Leo Vekker and John A. Allen and Yan Yufik",
	booktitle     = "{Proceedings of the Fifth International Conference on Human-Computer Interaction. Volume 1: Applications and Case Studies}",
	isbn          = "0-444-89540-X",
	pages         = "605--610",
	publisher     = "{Elsevier}",
	title         = "{On Psychophysiology of Cognitive Complexity}",
	year          = 1993,
}