@misc{rfc4289,
    series =    {Request for Comments},
    number =    4289,
    howpublished =  {RFC 4289},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC4289},
    url =       {https://www.rfc-editor.org/info/rfc4289},
    author =    {Dr. John C. Klensin and Ned Freed},
    title =     {{Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures}},
    pagetotal = 11,
    year =      2005,
    month =     dec,
    abstract =  {This document specifies IANA registration procedures for MIME external body access types and content-transfer-encodings. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.},
}