Shambhavi Srinivasa, Carey Williamson, Zongpeng Li. Barrier Counting in Mixed Wireless Sensor Networks. In 20th IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems, MASCOTS 2012, Washington, DC, USA, August 7-9, 2012. pages 359-368, IEEE Computer Society, 2012. [doi]