%% You should probably cite draft-ietf-core-dns-over-coap-20 instead of this revision.
@techreport{ietf-core-dns-over-coap-18,
    number =    {draft-ietf-core-dns-over-coap-18},
    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-core-dns-over-coap/18/},
    author =    {Martine Sophie Lenders and Christian Amsüss and Cenk Gündoğan and Thomas C. Schmidt and Matthias Wählisch},
    title =     {{DNS over CoAP (DoC)}},
    pagetotal = 32,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This document defines a protocol for exchanging DNS queries (OPCODE 0) over the Constrained Application Protocol (CoAP). These CoAP messages can be protected by (D)TLS-Secured CoAP (CoAPS) or Object Security for Constrained RESTful Environments (OSCORE) to provide encrypted DNS message exchange for constrained devices in the Internet of Things (IoT).},
}