%% You should probably cite rfc3546 instead of this I-D.
@techreport{ietf-tls-extensions-06,
    number =    {draft-ietf-tls-extensions-06},
    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-tls-extensions/06/},
    author =    {Simon Blake-Wilson and Jan Mikkelsen and Magnus Nyström and David Hopwood and Tim Wright},
    title =     {{Transport Layer Security (TLS) Extensions}},
    pagetotal = 29,
    year =      2003,
    month =     feb,
    day =       10,
    abstract =  {This document describes extensions that may be used to add functionality to Transport Layer Security (TLS). It provides both generic extension mechanisms for the TLS handshake client and server hellos, and specific extensions using these generic mechanisms. The extensions may be used by TLS clients and servers. The extensions are backwards compatible - communication is possible between TLS 1.0 clients that support the extensions and TLS 1.0 servers that do not support the extensions, and vice versa. {[}STANDARDS-TRACK{]}},
}