%% You should probably cite rfc7667 instead of this I-D.
@techreport{ietf-avtcore-rtp-topologies-update-06,
    number =    {draft-ietf-avtcore-rtp-topologies-update-06},
    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-avtcore-rtp-topologies-update/06/},
    author =    {Magnus Westerlund and Stephan Wenger},
    title =     {{RTP Topologies}},
    pagetotal = 46,
    year =      2015,
    month =     mar,
    day =       2,
    abstract =  {This document discusses point to point and multi-endpoint topologies used in Real-time Transport Protocol (RTP)-based environments. In particular, centralized topologies commonly employed in the video conferencing industry are mapped to the RTP terminology. This document is updated with additional topologies and replaces RFC 5117.},
}