1. T. Winter and P. Thubert, (Ed.) "RPL:IPv6 routing protocol for low-power and lossy networks," RFC 6550, 2012, pp. 852--861.
2. J. Tripathi, J. C. de Oliveira and J. P. Vasseur, "A performance evaluation study of RPL: Routing protocol for low power and lossy networks," CISS, 2010, pp. 1--6.
3. Oana Iova, Gian Pietro Picco, Timofei Istomin and Csaba Kiraly, "RPL, the Routing Standard for the Internet of Things… Or IS It?," IEEE Communication Magazine, 2016.
4. J. Hou, R. Jadhav and Z. Luo, (Ed.) "Optimization of Parent-node Selection in RPL-based Networks", Huawei Technologies, RFC Draft, 2017.
5. M. Qasem, A. Al-Dubai, I. Romdhani and B. Ghaleb, " Load Balancing Objective Function in RPL", RFC Draft, 2017.