%% You should probably cite draft-ietf-mip6-nemo-v4traversal instead of this I-D.
@techreport{soliman-v4v6-mipv6-00,
    number =    {draft-soliman-v4v6-mipv6-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-soliman-v4v6-mipv6/00/},
    author =    {Hesham Soliman and George Tsirtsis},
    title =     {{Dual Stack Mobile IPv6}},
    pagetotal = 11,
    year =      2004,
    month =     mar,
    day =       25,
    abstract =  {This specification adds IPv4 extensions to Mobile IPv6 to allow dual stack mobile nodes to roam within the Internet using Mobile IPv6 only while simultaneously maintaining connections using their IPv4 and IPv6 home addresses.},
}