%% You should probably cite rfc2305 instead of this I-D.
@techreport{ietf-fax-service-04,
    number =    {draft-ietf-fax-service-04},
    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-fax-service/04/},
    author =    {Dan Wing and Hiroyuki Ohno and Dr. Jun Murai Ph.D. and Kiyoshi Toyoda},
    title =     {{A Simple Mode of Facsimile Using Internet Mail}},
    pagetotal = 13,
    year =      1998,
    month =     feb,
    day =       11,
    abstract =  {This specification provides for "simple mode" carriage of facsimile data over the Internet. {[}STANDARDS-TRACK{]}},
}