%% You should probably cite draft-ietf-nvo3-gap-analysis instead of this I-D.
@techreport{gbclt-nvo3-gap-analysis-00,
    number =    {draft-gbclt-nvo3-gap-analysis-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-gbclt-nvo3-gap-analysis/00/},
    author =    {Eric Gray and Dr. Nabil N. Bitar and Xiaoming Chen and Marc Lasserre and Tina Tsou (Ting ZOU)},
    title =     {{NVO3 Gap Analysis - Requirements Versus Available Technology Choices}},
    pagetotal = 18,
    year =      2013,
    month =     jul,
    day =       15,
    abstract =  {This document evaluates candidate protocols against the NVO3 requirements. Gaps are identified and further work recommended.},
}