@inproceedings{HCI-NIMT-2009-Pastel,
	author        = "Robert Pastel",
	booktitle     = "{Proceedings of the 13th International Conference on Human-Computer Interaction. Part II: Novel Interaction Methods and Techniques}",
	doi           = "10.1007/978-3-642-02577-8_96",
	isbn          = "978-3-642-02576-1",
	pages         = "879--888",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Modeling the Difficulty for Centering Rectangles in One and Two Dimensions}",
	volume        = 5611,
	year          = 2009,
}