%% You should probably cite draft-ietf-regext-rdap-extensions instead of this I-D.
@techreport{newton-regext-rdap-extensions-01,
    number =    {draft-newton-regext-rdap-extensions-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-newton-regext-rdap-extensions/01/},
    author =    {Andy Newton and Jasdip Singh and Tom Harrison},
    title =     {{RDAP Extensions}},
    pagetotal = 11,
    year =      2023,
    month =     aug,
    day =       31,
    abstract =  {This document describes and clarifies the usage of extensions in RDAP.},
}