%% You should probably cite rfc8594 instead of this I-D.
@techreport{wilde-sunset-header-02,
    number =    {draft-wilde-sunset-header-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-wilde-sunset-header/02/},
    author =    {Erik Wilde},
    title =     {{The Sunset HTTP Header}},
    pagetotal = 7,
    year =      2017,
    month =     apr,
    day =       28,
    abstract =  {This specification defines the Sunset HTTP response header field, which indicates that a URI is likely to become unresponsive at a specified point in the future. Note to Readers This draft should be discussed on the ART mailing list (\textless{}https://www.ietf.org/mailman/listinfo/art\textgreater{}). Online access to all versions and files is available on GitHub (\textless{}https://github.com/dret/I-D/tree/master/sunset-header\textgreater{}).},
}