-  Xiaokang Liu, Lei Wang, Zhuxiu Yuan, Yuanfang Chen, Lei Shu, and Chunsheng Zhu, "Mitigating Radio Irregularity Impact: an Rssi Calibration Method for Range-Free Localization in Sensor Networks," Proc. of Int'l Conf. on Mobile Ad-hoc and Sensor Networks (MSN 2011), pages 160-166 December 2011.
-  Yuanfang Chen, Xiaokang Liu, Lei Wang, Lei Shu, and Han-Chieh Chao, "A Calibration Scheme Based on Pool Adjacent Violators for Localization in Wireless Sensor Networks," Proc. of Int'l Wireless Communications & Mobile Computing Conference (IWCMC 2010), pages 726-730 June 2010.