%% You should probably cite rfc3605 instead of this I-D.
@techreport{ietf-mmusic-sdp4nat-05,
    number =    {draft-ietf-mmusic-sdp4nat-05},
    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-mmusic-sdp4nat/05/},
    author =    {Christian Huitema},
    title =     {{Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP)}},
    pagetotal = 8,
    year =      2003,
    month =     jun,
    day =       2,
    abstract =  {The Session Description Protocol (SDP) is used to describe the parameters of media streams used in multimedia sessions. When a session requires multiple ports, SDP assumes that these ports have consecutive numbers. However, when the session crosses a network address translation device that also uses port mapping, the ordering of ports can be destroyed by the translation. To handle this, we propose an extension attribute to SDP.},
}