%% You should probably cite draft-ietf-core-coral instead of this I-D.
@techreport{hartke-t2trg-coral-02,
    number =    {draft-hartke-t2trg-coral-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-hartke-t2trg-coral/02/},
    author =    {Klaus Hartke},
    title =     {{The Constrained RESTful Application Language (CoRAL)}},
    pagetotal = 26,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {The Constrained RESTful Application Language (CoRAL) is a compact, binary representation format for building RESTful, hypermedia-driven applications that run in constrained environments.},
}