%% You should probably cite rfc8727 instead of this I-D.
@techreport{ietf-mile-jsoniodef-02,
    number =    {draft-ietf-mile-jsoniodef-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-ietf-mile-jsoniodef/02/},
    author =    {Takeshi Takahashi and Roman Danyliw and Mio Suzuki},
    title =     {{JSON binding of IODEF}},
    pagetotal = 55,
    year =      2018,
    month =     jan,
    day =       12,
    abstract =  {RFC 7970 {[}RFC7970{]} provides XML-based data representation on incident information, but the use of the IODEF data model is not limited to XML. JSON representation is sometimes preferred since it is easy to handle from certain programming environments. This draft represents the IODEF data model in JSON.},
}