%% You should probably cite rfc7585 instead of this I-D.
@techreport{ietf-radext-dynamic-discovery-15,
    number =    {draft-ietf-radext-dynamic-discovery-15},
    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-radext-dynamic-discovery/15/},
    author =    {Stefan Winter and Mike McCauley},
    title =     {{Dynamic Peer Discovery for RADIUS/TLS and RADIUS/DTLS Based on the Network Access Identifier (NAI)}},
    pagetotal = 32,
    year =      2015,
    month =     apr,
    day =       29,
    abstract =  {This document specifies a means to find authoritative RADIUS servers for a given realm. It is used in conjunction with either RADIUS over Transport Layer Security (RADIUS/TLS) or RADIUS over Datagram Transport Layer Security (RADIUS/DTLS).},
}