Signorini, Alessio ; Segre, Alberto Maria ; Polgreen, Philip M.: The Use of Twitter to Track Levels of Disease Activity and Public Concern in the U.S. during the Influenza A H1N1 Pandemic. In: PLoS ONE, 6 (2011), Nr. 5, S. e19467

Keally, Matthew ; Zhou, Gang ; Xing, Guoliang ; Wu, Jianxin ; Pyles, Andrew: PBN: towards practical activity recognition using smartphone-based body sensor networks. In: Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems. New York, NY, USA : ACM, 2011 (SenSys '11). - ISBN 978-1-4503-0718-5, S. 246--259