%% You should probably cite rfc7378 instead of this I-D.
@techreport{ietf-ecrit-trustworthy-location-04,
    number =    {draft-ietf-ecrit-trustworthy-location-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-ecrit-trustworthy-location/04/},
    author =    {Hannes Tschofenig and Henning Schulzrinne and Dr. Bernard D. Aboba},
    title =     {{Trustworthy Location}},
    pagetotal = 21,
    year =      2012,
    month =     oct,
    day =       22,
    abstract =  {For some location-based applications, such as emergency calling or roadside assistance, the trustworthiness of location information is critically important. This document describes the problem of "trustworthy location" as well as potential solutions.},
}