%% You should probably cite draft-ietf-tsvwg-tunnel-congestion-feedback instead of this I-D.
@techreport{wei-tsvwg-tunnel-congestion-feedback-04,
    number =    {draft-wei-tsvwg-tunnel-congestion-feedback-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-wei-tsvwg-tunnel-congestion-feedback/04/},
    author =    {Xinpeng Wei and Lei Zhu and Lingli Deng and Bob Briscoe},
    title =     {{Tunnel Congestion Feedback}},
    pagetotal = 11,
    year =      2015,
    month =     jun,
    day =       30,
    abstract =  {This document describes a mechanism to calculate congestion of a tunnel segment based on RFC 6040 recommendations, and a feedback protocol by which to send the measured congestion of the tunnel from egress to ingress . A basic model for measuring tunnel congestion and feedback is described, and a protocol for carrying the feedback data is outlined.},
}