%% You should probably cite rfc7840 instead of this I-D.
@techreport{ietf-ecrit-held-routing-02,
    number =    {draft-ietf-ecrit-held-routing-02},
    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/02/},
    author =    {James Winterbottom and Hannes Tschofenig and Laura Liess},
    title =     {{A Routing Request Extension for the HELD Protocol}},
    pagetotal = 13,
    year =      2015,
    month =     apr,
    day =       6,
    abstract =  {In many circumstances public LoST servers or a distributed network of forest guides linking public LoST servers is not available. The general ECRIT calling models breakdown without publically accessible LoST servers. Sometimes location servers may have access to emergency routing information. This document defines an extension to the HELD protocol so a location request can include a request for routing information and allowing the subsequent location response to include routing information.},
}