%% You should probably cite draft-ietf-bier-isis-extensions instead of this I-D.
@techreport{przygienda-bier-isis-ranges-01,
    number =    {draft-przygienda-bier-isis-ranges-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-przygienda-bier-isis-ranges/01/},
    author =    {Tony Przygienda and Les Ginsberg and Sam Aldrin and Zhaohui (Jeffrey) Zhang},
    title =     {{BIER support via ISIS}},
    pagetotal = 9,
    year =      2014,
    month =     oct,
    day =       24,
    abstract =  {Specification of an ISIS extension to support BIER domains.},
}