%% You should probably cite draft-ieft-l2tpext-tdm instead of this I-D.
@techreport{galtzur-l2tpext-tdm-01,
    number =    {draft-galtzur-l2tpext-tdm-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-galtzur-l2tpext-tdm/01/},
    author =    {Sharon Galtzur},
    title =     {{Layer Two Tunneling Protocol - Setup of TDM Pseudowires}},
    pagetotal = 7,
    year =      2004,
    month =     oct,
    day =       28,
    abstract =  {This document defines extensions to the Layer Two Tunneling Protocol (L2TP) for support of structure-agnostic {[}PWE3-SATOP{]} and structure- aware {[}PWE3-CESoPSN{]}, {[}PWE3-TDMoIP{]} pseudowires.},
}