%% You should probably cite rfc8101 instead of this I-D.
@techreport{holmberg-dispatch-mcptt-rp-namespace-00,
    number =    {draft-holmberg-dispatch-mcptt-rp-namespace-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-holmberg-dispatch-mcptt-rp-namespace/00/},
    author =    {Christer Holmberg and Jörgen Axell},
    title =     {{IANA Registration of New Session Initiation Protocol (SIP) Resource- Priority Namespace for Mission Critical Push To Talk service}},
    pagetotal = 5,
    year =      2016,
    month =     feb,
    day =       9,
    abstract =  {This document creates an additional Session Initiation Protocol (SIP) Resource-Priority namespace to meet the requirements of the 3GPP defined Mission Critical Push To Talk, and places this namespace in the IANA registry.},
}