%% You should probably cite rfc3343 instead of this I-D.
@techreport{ietf-apex-presence-06,
    number =    {draft-ietf-apex-presence-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-presence/06/},
    author =    {Dr. Marshall T. Rose and Dave Crocker and Graham Klyne},
    title =     {{The Application Exchange (APEX) Presence Service}},
    pagetotal = 23,
    year =      2002,
    month =     jan,
    day =       15,
    abstract =  {This memo describes the APEX presence service, addressed as the well- known endpoint 'apex=presence'. The presence service is used to manage presence information for APEX endpoints.},
}