%% You should probably cite rfc5027 instead of this I-D.
@techreport{ietf-mmusic-securityprecondition-04,
    number =    {draft-ietf-mmusic-securityprecondition-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-securityprecondition/04/},
    author =    {Flemming Andreasen and Dan Wing},
    title =     {{Security Preconditions for Session Description Protocol (SDP) Media Streams}},
    pagetotal = 16,
    year =      2007,
    month =     jul,
    day =       10,
    abstract =  {This document defines a new security precondition for the Session Description Protocol (SDP) precondition framework described in RFCs 3312 and 4032. A security precondition can be used to delay session establishment or modification until media stream security for a secure media stream has been negotiated successfully. {[}STANDARDS-TRACK{]}},
}