Thomas King Thomas Butter Matthias Brantner Stephan Kopf Thomas Haenselmann Alexander Biskop Andreas Farber Wolfgang Effelsberg Distribution of Fingerprints for 802.11-Based Positioning Systems. 224-226 2007 conf/mdm/2007 MDM http://dx.doi.org/10.1109/MDM.2007.43 db/conf/mdm/mdm2007.html#KingBBKHBFE07