%% You should probably cite rfc9839 instead of this I-D.
@techreport{bray-unichars-00,
    number =    {draft-bray-unichars-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-bray-unichars/00/},
    author =    {Tim Bray and Paul E. Hoffman},
    title =     {{Specifying Unicode Character Repertoires in RFCs}},
    pagetotal = 9,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This document describes how to specify the use of Unicode characters in a helpful and unambiguous way.},
}