%% You should probably cite draft-zern-webp-15 instead of this revision.
@techreport{zern-webp-03,
    number =    {draft-zern-webp-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-zern-webp/03/},
    author =    {James Zern},
    title =     {{WebP Image Format Media Type Registration}},
    pagetotal = 5,
    year =      2021,
    month =     sep,
    day =       22,
    abstract =  {WebP is a RIFF-based image file format which supports lossless and lossy compression as well as alpha (transparency) and animation. It covers use cases similar to JPEG, PNG and GIF.},
}