%% You should probably cite rfc8509 instead of this I-D.
@techreport{ietf-dnsop-kskroll-sentinel-00,
    number =    {draft-ietf-dnsop-kskroll-sentinel-00},
    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-dnsop-kskroll-sentinel/00/},
    author =    {Geoff Huston and Joao da Silva Damas and Warren "Ace" Kumari},
    title =     {{A Sentinel for Detecting Trusted Keys in DNSSEC}},
    pagetotal = 8,
    year =      2017,
    month =     dec,
    day =       11,
    abstract =  {The DNS Security Extensions (DNSSEC) were developed to provide origin authentication and integrity protection for DNS data by using digital signatures. These digital signatures can be verified by building a chain of trust starting from a trust anchor and proceeding down to a particular node in the DNS. This document specifies a mechanism that will allow an end user to determine the trusted key state of the resolvers that handle the user's DNS queries.},
}