%% You should probably cite rfc6814 instead of this I-D.
@techreport{gp-intarea-obsolete-ipv4-options-iana-00,
    number =    {draft-gp-intarea-obsolete-ipv4-options-iana-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-gp-intarea-obsolete-ipv4-options-iana/00/},
    author =    {Carlos Pignataro and Fernando Gont},
    title =     {{Formally Obsoleting some Historic IPv4 Options}},
    pagetotal = 6,
    year =      2012,
    month =     feb,
    day =       29,
    abstract =  {A number of IPv4 options have become obsolete in practice, but have never been formally obsoleted. This document obsoletes such IPv4 options, thus cleaning up the corresponding IANA registry, and serving as a basis for providing advice about the filtering of packets containing these options.},
}