Ultra Low Power Local Positioning Systems for Wireless Sensor Networks - Eickhoff, Ralf; Ellinger, Frank; Ziroff, Andreas; Ußmüller, Thomas; Hüttner, Jörg; Gierlich, Roland; Wehrli, Silvan; Huemer, Mario (ICT-MobileSummit, 2008)
elib2cris::1512001600,eickhoff2008c