%% You should probably cite rfc9229 instead of this I-D.
@techreport{ietf-babel-v4viav6-08,
    number =    {draft-ietf-babel-v4viav6-08},
    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-v4viav6/08/},
    author =    {Juliusz Chroboczek},
    title =     {{IPv4 Routes with an IPv6 Next Hop in the Babel Routing Protocol}},
    pagetotal = 9,
    year =      2022,
    month =     feb,
    day =       24,
    abstract =  {This document defines an extension to the Babel routing protocol that allows announcing routes to an IPv4 prefix with an IPv6 next hop, which makes it possible for IPv4 traffic to flow through interfaces that have not been assigned an IPv4 address.},
}