@inproceedings{bfk-hmsn-09, author = {Tobias Baumgartner and S{\'a}ndor P. Fekete and Alexander Kr{\"o}ller}, title = {Hallway Monitoring with Sensor Networks}, booktitle = {SenSys '09: Proceedings of the 7th ACM conference on Embedded network sensor systems}, year = {2009}, pages = {331--332}, publisher = {ACM} }