%% You should probably cite rfc8809 instead of this I-D.
@techreport{hodges-webauthn-registries-04,
    number =    {draft-hodges-webauthn-registries-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-hodges-webauthn-registries/04/},
    author =    {Jeff Hodges and Giridhar Mandyam and Michael B. Jones},
    title =     {{Registries for Web Authentication (WebAuthn)}},
    pagetotal = 9,
    year =      2019,
    month =     dec,
    day =       12,
    abstract =  {This specification defines IANA registries for W3C Web Authentication attestation statement format identifiers and extension identifiers.},
}