%% You should probably cite rfc7163 instead of this I-D.
@techreport{ietf-ecrit-country-emg-urn-01,
    number =    {draft-ietf-ecrit-country-emg-urn-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-ietf-ecrit-country-emg-urn/01/},
    author =    {Christer Holmberg and Ivo Sedlacek},
    title =     {{URN For Country Specific Emergency Services}},
    pagetotal = 7,
    year =      2013,
    month =     nov,
    day =       4,
    abstract =  {This document updates section 4.2 of RFC 5031, in order to allow the registration of service URNs with the 'sos' service type for emergency services that, at the time of registration, are offered in one country only.},
}