@inproceedings{HCI-EI-1999-NikovGL,
	author        = "Alexander Nikov and Tzanko Georgiev and Hans-Günter Lindner",
	booktitle     = "{Proceedings of the Eighth International Conference on Human-Computer Interaction. Volume 1: Ergonomics and User Interfaces}",
	isbn          = "0-8058-3391-9",
	pages         = "351--356",
	publisher     = "{Lawrence Erlbaum}",
	title         = "{A Control Structure for Adaptive Interactive Systems}",
	year          = 1999,
}