%% You should probably cite rfc8754 instead of this I-D.
@techreport{ietf-6man-segment-routing-header-21,
    number =    {draft-ietf-6man-segment-routing-header-21},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-6man-segment-routing-header/21/},
    author =    {Clarence Filsfils and Darren Dukes and Stefano Previdi and John Leddy and Satoru Matsushima and Daniel Voyer},
    title =     {{IPv6 Segment Routing Header (SRH)}},
    pagetotal = 32,
    year =      2019,
    month =     jun,
    day =       13,
    abstract =  {Segment Routing can be applied to the IPv6 data plane using a new type of Routing Extension Header. This document describes the Segment Routing Extension Header and how it is used by Segment Routing capable nodes.},
}