%% You should probably cite rfc7591 instead of this I-D.
@techreport{ietf-oauth-dyn-reg-04,
    number =    {draft-ietf-oauth-dyn-reg-04},
    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-oauth-dyn-reg/04/},
    author =    {Justin Richer and John Bradley and Michael B. Jones and Maciej Machulak},
    title =     {{OAuth Dynamic Client Registration Protocol}},
    pagetotal = 20,
    year =      2013,
    month =     jan,
    day =       8,
    abstract =  {This specification defines an endpoint and protocol for dynamic registration of OAuth Clients at an Authorization Server.},
}