%% You should probably cite rfc8346 instead of this I-D.
@techreport{ietf-i2rs-yang-l3-topology-09,
    number =    {draft-ietf-i2rs-yang-l3-topology-09},
    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-i2rs-yang-l3-topology/09/},
    author =    {Alexander Clemm and Jan Medved and Robert Varga and Xufeng Liu and Hariharan Ananthakrishnan and Nitin Bahadur},
    title =     {{A YANG Data Model for Layer 3 Topologies}},
    pagetotal = 32,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {This document defines a YANG data model for layer 3 network topologies.},
}