%% You should probably cite rfc3638 instead of this I-D.
@techreport{ietf-hubmib-1643-to-historic-01,
    number =    {draft-ietf-hubmib-1643-to-historic-01},
    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-hubmib-1643-to-historic/01/},
    author =    {C. M. Heard and John W. Flick},
    title =     {{Applicability Statement for Reclassification of RFC 1643 to Historic Status}},
    pagetotal = 5,
    year =      2002,
    month =     aug,
    day =       27,
    abstract =  {This memo recommends that RFC 1643 be reclassified as an Historic document and provides the supporting motivation for that recommendation.},
}