%% You should probably cite rfc4946 instead of this I-D.
@techreport{snell-atompub-feed-license-11,
    number =    {draft-snell-atompub-feed-license-11},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-snell-atompub-feed-license/11/},
    author =    {James M. Snell},
    title =     {{Atom License Extension}},
    pagetotal = 8,
    year =      2007,
    month =     mar,
    day =       28,
    abstract =  {This memo defines an extension to the Atom Syndication Format for describing licenses associated with Atom feeds and entries. This memo defines an Experimental Protocol for the Internet community.},
}