%% You should probably cite rfc9193 instead of this I-D.
@techreport{ietf-core-senml-data-ct-05,
    number =    {draft-ietf-core-senml-data-ct-05},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-core-senml-data-ct/05/},
    author =    {Ari Keränen and Carsten Bormann},
    title =     {{SenML Data Value Content-Format Indication}},
    pagetotal = 10,
    year =      2021,
    month =     sep,
    day =       15,
    abstract =  {The Sensor Measurement Lists (SenML) media type supports multiple types of values, from numbers to text strings and arbitrary binary data values. In order to facilitate processing of binary data values, this document specifies a pair of new SenML fields for indicating the Content-Format of those binary data values, i.e., their Internet media type including parameters as well as any Content-Coding applied.},
}