%% You should probably cite rfc3156 instead of this I-D.
@techreport{ietf-openpgp-mime-08,
    number =    {draft-ietf-openpgp-mime-08},
    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-openpgp-mime/08/},
    author =    {Thomas Roessler and Michael Elkins and Raph Levien and Dave Del Torto},
    title =     {{MIME Security with OpenPGP}},
    pagetotal = 15,
    year =      2001,
    month =     jul,
    day =       20,
    abstract =  {This document describes how the OpenPGP Message Format can be used to provide privacy and authentication using the Multipurpose Internet Mail Extensions (MIME) security content types described in RFC 1847. {[}STANDARDS-TRACK{]}},
}