%% You should probably cite rfc7807 instead of this I-D.
@techreport{ietf-appsawg-http-problem-03,
    number =    {draft-ietf-appsawg-http-problem-03},
    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-appsawg-http-problem/03/},
    author =    {Mark Nottingham and Erik Wilde},
    title =     {{Problem Details for HTTP APIs}},
    pagetotal = 16,
    year =      2016,
    month =     jan,
    day =       19,
    abstract =  {This document defines a "problem detail" as a way to carry machine- readable details of errors in a HTTP response to avoid the need to define new error response formats for HTTP APIs.},
}