%% You should probably cite draft-ietf-babel-source-specific instead of this I-D.
@techreport{boutier-babel-source-specific-00,
    number =    {draft-boutier-babel-source-specific-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-boutier-babel-source-specific/00/},
    author =    {Matthieu Boutier and Juliusz Chroboczek},
    title =     {{Source-Specific Routing in Babel}},
    pagetotal = 10,
    year =      2014,
    month =     nov,
    day =       20,
    abstract =  {This document describes extensions to the Babel routing protocol to support source-specific routing.},
}