%% You should probably cite draft-xu-mpls-sr-over-ip instead of this I-D.
@techreport{xu-mpls-unified-source-routing-instruction-03,
    number =    {draft-xu-mpls-unified-source-routing-instruction-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-xu-mpls-unified-source-routing-instruction/03/},
    author =    {Xiaohu Xu and Clarence Filsfils and Ahmed Bashandy and Robert Raszuk and Uma Chunduri and Luis M. Contreras and Luay Jalil and Hamid Assarpour and Gunter Van de Velde and Jeff Tantsura and Shaowen Ma and Tal Mizrahi},
    title =     {{Unified Source Routing Instructions using MPLS Label Stack}},
    pagetotal = 14,
    year =      2017,
    month =     aug,
    day =       11,
    abstract =  {MPLS Segment Routing (SR-MPLS in short) is an MPLS data plane-based source routing paradigm in which a sender of a packet is allowed to partially or completely specify the route the packet takes through the network by imposing stacked MPLS labels to the packet. SR-MPLS could be leveraged to realize a unified source routing mechanism across MPLS, IPv4 and IPv6 data planes by using an MPLS label stack as a unified source routing instruction set while preserving backward compatibility with SR-MPLS.},
}