%% You should probably cite draft-ietf-oauth-dpop instead of this I-D.
@techreport{fett-oauth-dpop-02,
    number =    {draft-fett-oauth-dpop-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-fett-oauth-dpop/02/},
    author =    {Daniel Fett and John Bradley and Brian Campbell and Torsten Lodderstedt and Michael B. Jones},
    title =     {{OAuth 2.0 Demonstration of Proof-of-Possession at the Application Layer}},
    pagetotal = 14,
    year =      2019,
    month =     jul,
    day =       8,
    abstract =  {This document describes a mechanism for sender-constraining OAuth 2.0 tokens via a proof-of-possession mechanism on the application level. This mechanism allows for the detection of replay attacks with access and refresh tokens.},
}