%% You should probably cite rfc3340 instead of this I-D.
@techreport{ietf-apex-core-06,
    number =    {draft-ietf-apex-core-06},
    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-apex-core/06/},
    author =    {Dr. Marshall T. Rose and Dave Crocker and Graham Klyne},
    title =     {{The Application Exchange Core}},
    pagetotal = 40,
    year =      2002,
    month =     jan,
    day =       15,
    abstract =  {This memo describes APEX, an extensible, asynchronous message relaying service for application layer programs.},
}