%% You should probably cite draft-ietf-appsawg-http-problem instead of this I-D.
@techreport{nottingham-http-problem-02,
    number =    {draft-nottingham-http-problem-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-nottingham-http-problem/02/},
    author =    {Mark Nottingham},
    title =     {{Problem Details for HTTP APIs}},
    pagetotal = 11,
    year =      2012,
    month =     dec,
    day =       10,
    abstract =  {This document defines a "problem detail" as an extensible way to carry machine-readable details of errors in a HTTP response, to avoid the need to invent new response formats for HTTP APIs. Note to Readers This draft should be discussed on the apps-discuss mailing list {[}1{]}.},
}