%% You should probably cite rfc9079 instead of this I-D.
@techreport{ietf-babel-source-specific-08,
    number =    {draft-ietf-babel-source-specific-08},
    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-babel-source-specific/08/},
    author =    {Matthieu Boutier and Juliusz Chroboczek},
    title =     {{Source-Specific Routing in the Babel Routing Protocol}},
    pagetotal = 13,
    year =      2021,
    month =     apr,
    day =       21,
    abstract =  {Source-specific routing, also known as Source Address Dependent Routing (SADR), is an extension to traditional next-hop routing where packets are forwarded according to both their destination address and their source address. This document describes an extension for source-specific routing to the Babel routing protocol.},
}