%% You should probably cite draft-bernardos-nmrg-multidomain instead of this I-D.
@techreport{bernardos-nfvrg-multidomain-01,
    number =    {draft-bernardos-nfvrg-multidomain-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-bernardos-nfvrg-multidomain/01/},
    author =    {Carlos J. Bernardos and Luis M. Contreras and Ishan Vaishnavi},
    title =     {{Multi-domain Network Virtualization}},
    pagetotal = 15,
    year =      2016,
    month =     oct,
    day =       31,
    abstract =  {This draft analyzes the problem of multi-provider multi-domain orchestration, by first scoping the problem, then looking into potential architectural approaches, and finally describing the solutions being developed by the European 5GEx project.},
}