%% You should probably cite rfc8999 instead of this I-D.
@techreport{ietf-quic-invariants-09,
    number =    {draft-ietf-quic-invariants-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-quic-invariants/09/},
    author =    {Martin Thomson},
    title =     {{Version-Independent Properties of QUIC}},
    pagetotal = 10,
    year =      2020,
    month =     jun,
    day =       10,
    abstract =  {This document defines the properties of the QUIC transport protocol that are expected to remain unchanged over time as new versions of the protocol are developed.},
}