%% You should probably cite rfc6798 instead of this I-D.
@techreport{ietf-xrblock-rtcp-xr-pdv-06,
    number =    {draft-ietf-xrblock-rtcp-xr-pdv-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-xrblock-rtcp-xr-pdv/06/},
    author =    {Alan Clark and Qin Wu},
    title =     {{RTCP XR Report Block for Packet Delay Variation Metric Reporting}},
    pagetotal = 21,
    year =      2012,
    month =     sep,
    day =       14,
    abstract =  {This document defines a Real-Time Control Protocol (RTCP) Extended Report (XR) block that allows the reporting of Packet Delay Variation metrics for a range of Real-time Transport Protocol (RTP) applications.},
}