%% You should probably cite draft-briscoe-tcpm-inner-space instead of this I-D.
@techreport{briscoe-tcpm-syn-op-sis-03,
    number =    {draft-briscoe-tcpm-syn-op-sis-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-briscoe-tcpm-syn-op-sis/03/},
    author =    {Bob Briscoe},
    title =     {{Extended TCP Option Space in the Payload of an Alternative SYN}},
    pagetotal = 2,
    year =      2014,
    month =     oct,
    day =       27,
    abstract =  {Superseded by draft-briscoe-tcpm-inner-space-00 New title: "Inner Space for TCP Options"},
}