%% You should probably cite rfc7840 instead of this I-D.
@techreport{ietf-ecrit-held-routing-05,
    number =    {draft-ietf-ecrit-held-routing-05},
    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-held-routing/05/},
    author =    {James Winterbottom and Hannes Tschofenig and Laura Liess},
    title =     {{A Routing Request Extension for the HTTP-Enabled Location Delivery (HELD) Protocol}},
    pagetotal = 16,
    year =      2016,
    month =     feb,
    day =       9,
    abstract =  {For cases where location servers have access to emergency routing information, they are able to return routing information with the location information if the location request includes a request for the desired routing information. This document specifies an extension to the HTTP-Enabled Location Delivery (HELD) protocol that updates RFC 5985 to support this function. Allowing location and routing information to be acquired in a single request response exchange updates RFC 6881, as current location acquisition and route determination procedures are separate operations.},
}