%% You should probably cite rfc3689 instead of this I-D.
@techreport{ietf-ieprep-ets-general-04,
    number =    {draft-ietf-ieprep-ets-general-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-ietf-ieprep-ets-general/04/},
    author =    {Ran Atkinson and Ken Carlberg},
    title =     {{General Requirements for Emergency Telecommunication Service (ETS)}},
    pagetotal = 10,
    year =      2003,
    month =     aug,
    day =       26,
    abstract =  {This document presents a list of general requirements in support of Emergency Telecommunications Service (ETS). Solutions to these requirements are not presented in this document. Additional requirements pertaining to specific applications, or types of applications, are to be specified in separate document(s). This memo provides information for the Internet community.},
}