@inproceedings{HCI-CE-1987-BullingerFZ,
	author        = "Hans-Jörg Bullinger and Klaus-Peter Fähnrich and Jürgen Ziegler",
	booktitle     = "{Proceedings of the Second International Conference on Human-Computer Interaction. Volume 2: Cognitive Engineering in the Design of Human-Computer Interaction and Expert Systems}",
	isbn          = "0-444-42848-8",
	pages         = "307--316",
	publisher     = "{Elsevier}",
	title         = "{Software-Ergonomics: History, State-of-Art and Important Trends}",
	year          = 1987,
}