%% You should probably cite rfc8779 instead of this I-D.
@techreport{ietf-pce-gmpls-pcep-extensions-16,
    number =    {draft-ietf-pce-gmpls-pcep-extensions-16},
    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-gmpls-pcep-extensions/16/},
    author =    {Cyril Margaria and Oscar Gonzalez de Dios and Fatai Zhang},
    title =     {{Path Computation Element Communication Protocol (PCEP) Extensions for GMPLS}},
    pagetotal = 38,
    year =      2019,
    month =     dec,
    day =       12,
    abstract =  {A Path Computation Element (PCE) provides path computation functions for Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) networks. Additional requirements for GMPLS are identified in RFC 7025. This memo provides extensions to the Path Computation Element Communication Protocol (PCEP) for the support of the GMPLS control plane to address those requirements.},
}