%% You should probably cite rfc7891 instead of this I-D.
@techreport{ietf-pim-explicit-rpf-vector-03,
    number =    {draft-ietf-pim-explicit-rpf-vector-03},
    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-pim-explicit-rpf-vector/03/},
    author =    {Javed Asghar and IJsbrand Wijnands and Sowmya Krishnaswamy and Apoorva Karan and Vishal Arya},
    title =     {{Explicit RPF Vector}},
    pagetotal = 5,
    year =      2013,
    month =     oct,
    day =       20,
    abstract =  {This document defines a new Reverse Path Forwarding (RPF) Vector TLV to build multicast trees via an explicit path sent in the PIM join.},
}