%% You should probably cite rfc1828 instead of this I-D.
@techreport{ietf-ipsec-ah-md5-03,
    number =    {draft-ietf-ipsec-ah-md5-03},
    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-ipsec-ah-md5/03/},
    author =    {Perry E. Metzger and William A. Simpson},
    title =     {{IP Authentication using Keyed MD5}},
    pagetotal = 6,
    year =      1995,
    month =     apr,
    day =       25,
    abstract =  {This document describes the use of keyed MD5 with the IP Authentication Header. {[}STANDARDS-TRACK{]}},
}