@inproceedings{benzina2011chi,
 author = {Benzina, Amal and Toennis, Marcus and Klinker, Gudrun and Ashry, Mohamed},
 title = {Phone-based motion control in VR: analysis of degrees of freedom},
 booktitle = {Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems},
 series = {CHI Extended Abstracts (CHI EA) '11},
 year = {2011},
 isbn = {978-1-4503-0268-5},
 location = {Vancouver, BC, Canada},
 pages = {1519--1524},
 numpages = {6},
 url = {http://doi.acm.org/10.1145/1979742.1979801},
 doi = {http://doi.acm.org/10.1145/1979742.1979801},
 acmid = {1979801},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {degree of freedom, interaction, navigation, travel, user study},
}