@inbook{Becker_2010, title={How to Log Sleeping Trends? A Case Study on the Long-Term Capturing of User Data}, ISBN={9783642169823}, ISSN={1611-3349}, url={http://dx.doi.org/10.1007/978-3-642-16982-3_2}, DOI={10.1007/978-3-642-16982-3_2}, booktitle={Smart Sensing and Context}, publisher={Springer Berlin Heidelberg}, author={Becker, Holger and Borazio, Marko and Van Laerhoven, Kristof}, year={2010}, pages={15–27} }