@ARTICLE{4358997, author={Ren, Kui and Lou, Wenjing and Zhang, Yanchao}, journal={IEEE Transactions on Mobile Computing}, title={LEDS: Providing Location-Aware End-to-End Data Security in Wireless Sensor Networks}, year={2008}, volume={7}, number={5}, pages={585-598}, doi={10.1109/TMC.2007.70753}}