%% You should probably cite rfc7125 instead of this I-D.
@techreport{trammell-ipfix-tcpcontrolbits-revision-04,
    number =    {draft-trammell-ipfix-tcpcontrolbits-revision-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-trammell-ipfix-tcpcontrolbits-revision/04/},
    author =    {Brian Trammell and Paul Aitken},
    title =     {{Revision of the tcpControlBits IPFIX Information Element}},
    pagetotal = 5,
    year =      2013,
    month =     oct,
    day =       7,
    abstract =  {This document revises the tcpControlBits IPFIX Information Element as originally defined in {[}RFC5102{]} to reflect changes to the TCP Flags header field since {[}RFC0793{]}.},
}