%% You should probably cite rfc6844 instead of this I-D.
@techreport{ietf-pkix-caa-09,
    number =    {draft-ietf-pkix-caa-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-caa/09/},
    author =    {Phillip Hallam-Baker and Rob Stradling},
    title =     {{DNS Certification Authority Authorization (CAA) Resource Record}},
    pagetotal = 16,
    year =      2012,
    month =     jul,
    day =       1,
    abstract =  {The Certification Authority Authorization (CAA) DNS Resource Record allows a DNS domain name holder to specify one or more Certification Authorities (CAs) authorized to issue certificates for that domain. CAA resource records allow a public Certification Authority to implement additional controls to reduce the risk of unintended certificate mis-issue.},
}