%% You should probably cite rfc9471 instead of this I-D.
@techreport{ietf-dnsop-glue-is-not-optional-02,
    number =    {draft-ietf-dnsop-glue-is-not-optional-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-dnsop-glue-is-not-optional/02/},
    author =    {Mark P. Andrews and Shumon Huque and Paul Wouters and Duane Wessels},
    title =     {{Glue In DNS Referral Responses Is Not Optional}},
    pagetotal = 7,
    year =      2021,
    month =     jul,
    day =       26,
    abstract =  {The DNS uses glue records to allow iterative clients to find the addresses of nameservers that are contained within a delegated zone. Authoritative Servers are expected to return all available glue records in referrals. If message size constraints prevent the inclusion of all glue records in a UDP response, the server MUST set the TC flag to inform the client that the response is incomplete, and that the client SHOULD use TCP to retrieve the full response.},
}