%% You should probably cite rfc8662 instead of this I-D.
@techreport{ietf-mpls-spring-entropy-label-06,
    number =    {draft-ietf-mpls-spring-entropy-label-06},
    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-mpls-spring-entropy-label/06/},
    author =    {Sriganesh Kini and Kireeti Kompella and Siva Sivabalan and Stephane Litkowski and Rob Shakir and Jeff Tantsura},
    title =     {{Entropy label for SPRING tunnels}},
    pagetotal = 23,
    year =      2017,
    month =     may,
    day =       5,
    abstract =  {Source routed tunnels with label stacking is a technique that can be leveraged to steer a packet through a controlled set of segments. This can be applied to the Multi Protocol Label Switching (MPLS) data plane. Entropy label (EL) is a technique used in MPLS to improve load-balancing. This document examines and describes how ELs are to be applied to source routed tunnels with label stacks.},
}