Jabbarifar, M., Shameli-Sendi, A., Sadighian, A., Ezzati-Jivan, N., & Dagenais, M. R. (2010). A Reliable and Efficient Time Synchronization Protocol for Heterogeneous Wireless Sensor Network. Wireless Sensor Network, 02(12), 910-918. https://doi.org/10.4236/wsn.2010.212109