@misc{rfc3340,
    series =    {Request for Comments},
    number =    3340,
    howpublished =  {RFC 3340},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC3340},
    url =       {https://www.rfc-editor.org/info/rfc3340},
    author =    {Dr. Marshall T. Rose and Dave Crocker and Graham Klyne},
    title =     {{The Application Exchange Core}},
    pagetotal = 40,
    year =      2002,
    month =     jul,
    abstract =  {This memo describes APEX, an extensible, asynchronous message relaying service for application layer programs.},
}