%% You should probably cite draft-ietf-geopriv-deref-protocol instead of this I-D.
@techreport{winterbottom-geopriv-deref-protocol-05,
    number =    {draft-winterbottom-geopriv-deref-protocol-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-winterbottom-geopriv-deref-protocol/05/},
    author =    {James Winterbottom and Hannes Tschofenig and Henning Schulzrinne and Martin Thomson and Martin Dawson},
    title =     {{A Location Dereferencing Protocol Using HELD}},
    pagetotal = 24,
    year =      2010,
    month =     jan,
    day =       27,
    abstract =  {This document describes how to use the Hypertext Transfer Protocol (HTTP) over Transport Layer Security (TLS) as a dereferencing protocol to resolve a reference to a Presence Information Data Format Location Object (PIDF-LO). The document assumes that a Location Recipient possesses a secure HELD URI that can be used in conjunction with the HELD protocol to request the location of the Target.},
}