%% You should probably cite rfc9010 instead of this I-D.
@techreport{ietf-roll-unaware-leaves-25,
    number =    {draft-ietf-roll-unaware-leaves-25},
    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-roll-unaware-leaves/25/},
    author =    {Pascal Thubert and Michael Richardson},
    title =     {{Routing for RPL Leaves}},
    pagetotal = 41,
    year =      2020,
    month =     dec,
    day =       15,
    abstract =  {This specification updates RFC6550, RFC6775, and RFC8505, to provide routing services to IPv6 Nodes that implement RFC6775, RFC8505, and their extensions therein, but do not support RFC6550.},
}