%% You should probably cite draft-ietf-idr-flowspec-srv6 instead of this I-D.
@techreport{li-idr-flowspec-srv6-01,
    number =    {draft-li-idr-flowspec-srv6-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-li-idr-flowspec-srv6/01/},
    author =    {Zhenbin Li and Lei Li and Huaimo Chen and Christoph Loibl and Yongqing Zhu and Xufeng Liu},
    title =     {{BGP Flow Specification for SRv6}},
    pagetotal = 9,
    year =      2019,
    month =     nov,
    day =       4,
    abstract =  {This draft proposes extensions to BGP to distribute traffic Flow Specifications for SRv6 for filtering SRv6 packets that match a sequence of conditions.},
}