@techreport{msporny-d-langtag-ext-00,
    number =    {draft-msporny-d-langtag-ext-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-msporny-d-langtag-ext/00/},
    author =    {Manu Sporny},
    title =     {{BCP 47 Extension D}},
    pagetotal = 4,
    year =      2019,
    month =     may,
    day =       25,
    abstract =  {This document specifies an Extension to BCP 47 which provides subtags that specify language direction.},
}