%% You should probably cite rfc8748 instead of this I-D.
@techreport{ietf-regext-epp-fees-06,
    number =    {draft-ietf-regext-epp-fees-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-regext-epp-fees/06/},
    author =    {Roger Carney and Gavin Brown and Jothan Frakes},
    title =     {{Registry Fee Extension for the Extensible Provisioning Protocol (EPP)}},
    pagetotal = 35,
    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 describes an Extensible Provisioning Protocol (EPP) extension mapping for registry fees.},
}