%% You should probably cite draft-tschofenig-teep-protocol instead of this I-D.
@techreport{tschofenig-teep-otrp-v2-00,
    number =    {draft-tschofenig-teep-otrp-v2-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-tschofenig-teep-otrp-v2/00/},
    author =    {Mingliang Pei and Hannes Tschofenig and Dave Wheeler},
    title =     {{The Open Trust Protocol (OTrP) v2}},
    pagetotal = 18,
    year =      2019,
    month =     jul,
    day =       8,
    abstract =  {This document specifies the Open Trust Protocol (OTrP) version 2, a protocol that provisions and installs, updates, and deletes Trusted Applications in a device with a Trusted Execution Environment (TEE).},
}