%% You should probably cite draft-moskowitz-hip-hierarchical-hit instead of this I-D.
@techreport{moskowitz-hierarchical-hip-05,
    number =    {draft-moskowitz-hierarchical-hip-05},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-moskowitz-hierarchical-hip/05/},
    author =    {Robert Moskowitz and Xiaohu Xu and Bingyang Liu},
    title =     {{Hierarchical HITs for HIPv2}},
    pagetotal = 14,
    year =      2017,
    month =     dec,
    day =       22,
    abstract =  {This document describes using a hierarchical HIT to facilitate large deployments in mobile networks.},
}