%% You should probably cite rfc3050 instead of this I-D.
@techreport{lennox-sip-cgi-04,
    number =    {draft-lennox-sip-cgi-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-lennox-sip-cgi/04/},
    author =    {Henning Schulzrinne and Jonathan Rosenberg and Jonathan Lennox},
    title =     {{Common Gateway Interface for SIP}},
    pagetotal = 35,
    year =      2000,
    month =     jun,
    day =       6,
    abstract =  {This document defines a SIP CGI interface for providing SIP services on a SIP server. This memo provides information for the Internet community.},
}