@techreport{johnston-http-category-header-02,
    number =    {draft-johnston-http-category-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-johnston-http-category-header/02/},
    author =    {Sam Johnston},
    title =     {{Web Categories}},
    pagetotal = 9,
    year =      2011,
    month =     sep,
    day =       29,
    abstract =  {This document specifies the Category header-field for HyperText Transfer Protocol (HTTP), which enables the sending of taxonomy information in HTTP headers in a similar fashion to that employed by Atom.},
}