%% You should probably cite rfc7599 instead of this I-D.
@techreport{ietf-softwire-map-t-06,
    number =    {draft-ietf-softwire-map-t-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-softwire-map-t/06/},
    author =    {Xing Li and Congxiao Bao and Wojciech Dec and Ole Trøan and Satoru Matsushima and Tetsuya Murakami},
    title =     {{Mapping of Address and Port using Translation (MAP-T)}},
    pagetotal = 24,
    year =      2014,
    month =     oct,
    day =       14,
    abstract =  {This document specifies the "Mapping of Address and Port" stateless IPv6-IPv4 Network Address Translation (NAT64) based solution architecture for providing shared or non-shared IPv4 address connectivity to and across an IPv6 network.},
}