%% You should probably cite draft-xu-mpls-sr-over-ip instead of this I-D.
@techreport{xu-mpls-unified-source-routing-instruction-02,
    number =    {draft-xu-mpls-unified-source-routing-instruction-02},
    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/02/},
    author =    {Xiaohu Xu and Stewart Bryant 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},
    title =     {{Unified Source Routing Instruction using MPLS Label Stack}},
    pagetotal = 11,
    year =      2017,
    month =     jun,
    day =       29,
    abstract =  {MPLS-SPRING (a.k.a., MPLS Segment Routing) 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. MPLS-SPRING could be leveraged to realize a unified source routing mechanism across MPLS, IPv4 and IPv6 data planes by using a unified source routing instruction set while preserving backward compatibility with MPLS-SPRING.},
}