%% You should probably cite draft-ietf-radext-dynamic-discovery instead of this I-D.
@techreport{winter-dynamic-discovery-00,
    number =    {draft-winter-dynamic-discovery-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-winter-dynamic-discovery/00/},
    author =    {Stefan Winter and Mike McCauley},
    title =     {{NAI-based Dynamic Peer Discovery for RADIUS over TLS and DTLS}},
    pagetotal = 6,
    year =      2009,
    month =     feb,
    day =       26,
    abstract =  {This document specifies a means to find authoritative AAA servers for a given NAI realm. It can be used in conjunction with RADIUS over TLS and RADIUS over DTLS.},
}