%% You should probably cite rfc2095 instead of this I-D.
@techreport{klensin-cram-02,
    number =    {draft-klensin-cram-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-klensin-cram/02/},
    author =    {Randy Catoe and Paul Krumviede and Dr. John C. Klensin},
    title =     {{IMAP/POP AUTHorize Extension for Simple Challenge/Response}},
    pagetotal = 5,
    year =      1996,
    month =     sep,
    day =       9,
    abstract =  {This specification provides a simple challenge-response authentication protocol that is suitable for use with IMAP4. {[}STANDARDS-TRACK{]}},
}