%% You should probably cite draft-ietf-oauth-spop instead of this I-D.
@techreport{sakimura-oauth-tcse-00,
    number =    {draft-sakimura-oauth-tcse-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-sakimura-oauth-tcse/00/},
    author =    {Nat Sakimura and John Bradley and Naveen Agarwal},
    title =     {{OAuth Transient Client Secret Extension for Public Clients}},
    pagetotal = 7,
    year =      2013,
    month =     jul,
    day =       30,
    abstract =  {The OAuth 2.0 public client utilizing code flow is susceptible to the code interception attack. This specification describe a mechanism that acts as a control against this threat.},
}