%% You should probably cite rfc3769 instead of this I-D.
@techreport{ietf-ipv6-prefix-delegation-requirement-04,
    number =    {draft-ietf-ipv6-prefix-delegation-requirement-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-ipv6-prefix-delegation-requirement/04/},
    author =    {Shin Miyakawa and Ralph Droms},
    title =     {{Requirements for IPv6 Prefix Delegation}},
    pagetotal = 6,
    year =      2004,
    month =     mar,
    day =       18,
    abstract =  {This document describes requirements for how IPv6 address prefixes should be delegated to an IPv6 subscriber's network (or "site"). This memo provides information for the Internet community.},
}