%% You should probably cite rfc8931 instead of this I-D.
@techreport{ietf-6lo-fragment-recovery-21,
    number =    {draft-ietf-6lo-fragment-recovery-21},
    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-6lo-fragment-recovery/21/},
    author =    {Pascal Thubert},
    title =     {{IPv6 over Low-Power Wireless Personal Area Network (6LoWPAN) Selective Fragment Recovery}},
    pagetotal = 28,
    year =      2020,
    month =     mar,
    day =       23,
    abstract =  {This document updates RFC 4944 with a protocol that forwards individual fragments across a route-over mesh and recovers them end to end, with congestion control capabilities to protect the network.},
}