%% You should probably cite rfc4570 instead of this I-D.
@techreport{ietf-mmusic-sdp-srcfilter-10,
    number =    {draft-ietf-mmusic-sdp-srcfilter-10},
    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-sdp-srcfilter/10/},
    author =    {Bob Quinn and Dr. Ross Finlayson},
    title =     {{Session Description Protocol (SDP) Source Filters}},
    pagetotal = 14,
    year =      2005,
    month =     sep,
    day =       22,
    abstract =  {This document describes how to adapt the Session Description Protocol (SDP) to express one or more source addresses as a source filter for one or more destination "connection" addresses. It defines the syntax and semantics for an SDP "source-filter" attribute that may reference either IPv4 or IPv6 address(es) as either an inclusive or exclusive source list for either multicast or unicast destinations. In particular, an inclusive source-filter can be used to specify a Source-Specific Multicast (SSM) session. {[}STANDARDS-TRACK{]}},
}