%% You should probably cite rfc8830 instead of this I-D.
@techreport{ietf-mmusic-msid-04,
    number =    {draft-ietf-mmusic-msid-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-ietf-mmusic-msid/04/},
    author =    {Harald T. Alvestrand},
    title =     {{WebRTC MediaStream Identification in the Session Description Protocol}},
    pagetotal = 17,
    year =      2014,
    month =     feb,
    day =       14,
    abstract =  {This document specifies a grouping mechanism for RTP media streams that can be used to specify relations between media streams. This mechanism is used to signal the association between the SDP concept of "m-line" and the WebRTC concept of "MediaStream" / "MediaStreamTrack" using SDP signaling. This document is a work item of the MMUSIC WG, whose discussion list is mmusic@ietf.org.},
}