%% You should probably cite rfc7590 instead of this I-D.
@techreport{ietf-uta-xmpp-06,
    number =    {draft-ietf-uta-xmpp-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-uta-xmpp/06/},
    author =    {Peter Saint-Andre and Thijs Alkemade},
    title =     {{Use of Transport Layer Security (TLS) in the Extensible Messaging and Presence Protocol (XMPP)}},
    pagetotal = 8,
    year =      2015,
    month =     apr,
    day =       14,
    abstract =  {This document provides recommendations for the use of Transport Layer Security (TLS) in the Extensible Messaging and Presence Protocol (XMPP). This document updates RFC 6120.},
}