%% You should probably cite rfc9005 instead of this I-D.
@techreport{ietf-pce-association-policy-04,
    number =    {draft-ietf-pce-association-policy-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-pce-association-policy/04/},
    author =    {Dhruv Dhody and Siva Sivabalan and Stephane Litkowski and Jeff Tantsura and Jonathan Hardwick},
    title =     {{Path Computation Element communication Protocol extension for associating Policies and LSPs}},
    pagetotal = 13,
    year =      2018,
    month =     dec,
    day =       18,
    abstract =  {This document introduces a simple mechanism to associate policies to a group of Label Switched Paths (LSPs) via an extension to the Path Computation Element (PCE) Communication Protocol (PCEP).},
}