%% You should probably cite draft-lennox-mmusic-sdp-source-selection-05 instead of this revision.
@techreport{lennox-mmusic-sdp-source-selection-04,
    number =    {draft-lennox-mmusic-sdp-source-selection-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-lennox-mmusic-sdp-source-selection/04/},
    author =    {Jonathan Lennox and Henning Schulzrinne},
    title =     {{Mechanisms for Media Source Selection in the Session Description Protocol (SDP)}},
    pagetotal = 17,
    year =      2012,
    month =     mar,
    day =       12,
    abstract =  {Source-specific media attributes in the Session Description Protocol (SDP) allow endpoints to describe Real-Time Transport Protocol (RTP) sources within a media stream. This document extends that mechanism by defining how participants in a multimedia session can request specific sources from a remote party.},
}