@inproceedings{Soukoreff2011interact,
 author = {Soukoreff, R. William and Zhao, Jian and Ren, Xiangshi},
 title = {The entropy of a rapid aimed movement: Fitts' index of difficulty versus Shannon's entropy},
 booktitle = {Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part IV},
 series = {INTERACT'11},
 year = {2011},
 isbn = {978-3-642-23767-6},
 location = {Lisbon, Portugal},
 pages = {222-239},
 numpages = {18},
 url = {http://dl.acm.org/citation.cfm?id=2042283.2042307},
 acmid = {2042307},
 publisher = {Springer-Verlag},
 address = {Berlin, Heidelberg},
 keywords = {Fitts' law, entropy, human performance modelling},
}