%% You should probably cite rfc6713 instead of this I-D.
@techreport{levine-application-gzip-03,
    number =    {draft-levine-application-gzip-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-levine-application-gzip/03/},
    author =    {John R. Levine},
    title =     {{The 'application/zlib' and 'application/gzip' Media Types}},
    pagetotal = 4,
    year =      2012,
    month =     jun,
    day =       2,
    abstract =  {This document defines the 'application/gzip' and 'application/zlib' media types for compressed data using the gzip and zlib compression formats. This document is not an Internet Standards Track specification; it is published for informational purposes.},
}