%% You should probably cite rfc4140 instead of this I-D.
@techreport{ietf-mipshop-hmipv6-04,
    number =    {draft-ietf-mipshop-hmipv6-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-mipshop-hmipv6/04/},
    author =    {Claude Castelluccia and Hesham Soliman and Ludovic Bellier and Karim El Malki},
    title =     {{Hierarchical Mobile IPv6 Mobility Management (HMIPv6)}},
    pagetotal = 29,
    year =      2004,
    month =     dec,
    day =       29,
    abstract =  {This document introduces extensions to Mobile IPv6 and IPv6 Neighbour Discovery to allow for local mobility handling. Hierarchical mobility management for Mobile IPv6 is designed to reduce the amount of signalling between the Mobile Node, its Correspondent Nodes, and its Home Agent. The Mobility Anchor Point (MAP) described in this document can also be used to improve the performance of Mobile IPv6 in terms of handover speed. This memo defines an Experimental Protocol for the Internet community.},
}