%% You should probably cite rfc8701 instead of this I-D.
@techreport{ietf-tls-grease-01,
    number =    {draft-ietf-tls-grease-01},
    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-tls-grease/01/},
    author =    {David Benjamin},
    title =     {{Applying GREASE to TLS Extensibility}},
    pagetotal = 10,
    year =      2018,
    month =     jun,
    day =       6,
    abstract =  {This document describes GREASE (Generate Random Extensions And Sustain Extensibility), a mechanism to prevent extensibility failures in the TLS ecosystem. It reserves a set of TLS protocol values that may be advertised to ensure peers correctly handle unknown values.},
}