%% You should probably cite draft-ietf-core-groupcomm-proxy instead of this I-D.
@techreport{tiloca-core-groupcomm-proxy-07,
    number =    {draft-tiloca-core-groupcomm-proxy-07},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-tiloca-core-groupcomm-proxy/07/},
    author =    {Marco Tiloca and Esko Dijk},
    title =     {{Proxy Operations for CoAP Group Communication}},
    pagetotal = 59,
    year =      2022,
    month =     sep,
    day =       5,
    abstract =  {This document specifies the operations performed by a proxy, when using the Constrained Application Protocol (CoAP) in group communication scenarios. Such a proxy processes a single request sent by a client over unicast, and distributes the request over IP multicast to a group of servers. Then, the proxy collects the individual responses from those servers and relays those responses back to the client, in a way that allows the client to distinguish the responses and their origin servers through embedded addressing information. This document updates RFC7252 with respect to caching of response messages at proxies.},
}