%% You should probably cite rfc5816 instead of this I-D.
@techreport{ietf-pkix-rfc3161-update-09,
    number =    {draft-ietf-pkix-rfc3161-update-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-pkix-rfc3161-update/09/},
    author =    {Stefan Santesson and Nick Pope},
    title =     {{ESSCertIDv2 Update for RFC 3161}},
    pagetotal = 5,
    year =      2009,
    month =     oct,
    day =       26,
    abstract =  {This document updates RFC 3161. It allows the use of ESSCertIDv2, as defined in RFC 5035, to specify the hash of a signer certificate when the hash is calculated with a function other than the Secure Hash Algorithm (SHA-1). {[}STANDARDS-TRACK{]}},
}