%% You should probably cite rfc8649 instead of this I-D.
@techreport{ietf-lamps-hash-of-root-key-cert-extn-02,
    number =    {draft-ietf-lamps-hash-of-root-key-cert-extn-02},
    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-lamps-hash-of-root-key-cert-extn/02/},
    author =    {Russ Housley},
    title =     {{Hash Of Root Key Certificate Extension}},
    pagetotal = 9,
    year =      2018,
    month =     dec,
    day =       27,
    abstract =  {This document specifies the Hash Of Root Key certificate extension. This certificate extension is carried in the self-signed certificate for a trust anchor, which is often called a Root Certification Authority (CA) certificate. This certificate extension unambiguously identifies the next public key that will be used by the trust anchor at some point in the future.},
}