%% You should probably cite draft-snell-link-method-12 instead of this revision.
@techreport{snell-link-method-05,
    number =    {draft-snell-link-method-05},
    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-link-method/05/},
    author =    {James M. Snell},
    title =     {{HTTP Link and Unlink Methods}},
    pagetotal = 6,
    year =      2013,
    month =     oct,
    day =       1,
    abstract =  {This specification defines the semantics of the LINK and UNLINK HTTP methods.},
}