%% You should probably cite rfc7671 instead of this I-D.
@techreport{ietf-dane-ops-04,
    number =    {draft-ietf-dane-ops-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-dane-ops/04/},
    author =    {Viktor Dukhovni and Wes Hardaker},
    title =     {{Updates to and Operational Guidance for the DANE Protocol}},
    pagetotal = 27,
    year =      2014,
    month =     jun,
    day =       24,
    abstract =  {This memo clarifies and updates the DANE TLSA protocol based on implementation experience since the publication of the original specification {[}RFC6698{]}. It also contains guidance for DANE implementers and operators.},
}