%% You should probably cite rfc9010 instead of this I-D.
@techreport{ietf-roll-unaware-leaves-09,
    number =    {draft-ietf-roll-unaware-leaves-09},
    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/09/},
    author =    {Pascal Thubert and Michael Richardson},
    title =     {{Routing for RPL Leaves}},
    pagetotal = 32,
    year =      ** No value found for 'doc.pub_date.year' **,
    month =     ** No value found for 'doc.pub_date' **,
    day =       ** No value found for 'doc.pub_date.day' **,
    abstract =  {This specification extends RFC6550 and RFC8505 to provide unicast and multicast routing services in a RPL domain to 6LNs that are plain Hosts and do not participate to RPL, and enables the RPL Root to proxy the EDAR/EDAC flow on behalf of the RULs and RANs in its DODAG.},
}