@inproceedings{HCI-IPT-2007-BlumK,
	author        = "Rainer Blum and Karim Khakzar",
	booktitle     = "{Proceedings of the 12th International Conference on Human-Computer Interaction. Part II: Interaction Platforms and Techniques}",
	doi           = "10.1007/978-3-540-73107-8_25",
	isbn          = "978-3-540-73106-1",
	pages         = "226--235",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Design Guidelines for PDA User Interfaces in the Context of Retail Sales Support}",
	volume        = 4551,
	year          = 2007,
}