%% You should probably cite rfc6061 instead of this I-D.
@techreport{rosen-urn-nena-03,
    number =    {draft-rosen-urn-nena-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-rosen-urn-nena/03/},
    author =    {Brian Rosen},
    title =     {{Uniform Resource Name (URN) Namespace for the National Emergency Number Association (NENA)}},
    pagetotal = 7,
    year =      2010,
    month =     oct,
    day =       12,
    abstract =  {This document describes the Namespace Identifier (NID) "nena" for Uniform Resource Name (URN) resources published by the National Emergency Number Association (NENA). NENA defines and manages resources that utilize this URN model. Management activities for these and other resource types are provided by the NENA Registry System (NRS). This document is not an Internet Standards Track specification; it is published for informational purposes.},
}