%% You should probably cite rfc8842 instead of this I-D.
@techreport{ietf-mmusic-dtls-sdp-31,
    number =    {draft-ietf-mmusic-dtls-sdp-31},
    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-dtls-sdp/31/},
    author =    {Christer Holmberg and Roman Shpount},
    title =     {{Session Description Protocol (SDP) Offer/Answer Considerations for Datagram Transport Layer Security (DTLS) and Transport Layer Security (TLS)}},
    pagetotal = 27,
    year =      2017,
    month =     oct,
    day =       7,
    abstract =  {This document defines the Session Description Protocol (SDP) offer/ answer procedures for negotiating and establishing a Datagram Transport Layer Security (DTLS) association. The document also defines the criteria for when a new DTLS association must be established. The document updates RFC 5763 and RFC 7345, by replacing common SDP offer/answer procedures with a reference to this specification. This document defines a new SDP media-level attribute, 'tls-id'. This document also defines how the 'tls-id' attribute can be used for negotiating and establishing a Transport Layer Security (TLS) connection, in conjunction with the procedures in RFC 4145 and RFC 8122.},
}