%% You should probably cite draft-amsuess-core-repeat-request-tag instead of this I-D.
@techreport{amsuess-core-request-tag-00,
    number =    {draft-amsuess-core-request-tag-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-amsuess-core-request-tag/00/},
    author =    {Christian Amsüss},
    title =     {{Request-Tag option}},
    pagetotal = 16,
    year =      2017,
    month =     mar,
    day =       27,
    abstract =  {This memo describes an optional extension to the Constrained Application Protocol (CoAP, {[}RFC7252{]} and {[}RFC7959{]}) that allows matching of request blocks. This primarily serves to transfer the security properties that Object Security of CoAP (OSCOAP, {[}I-D.ietf-core-object-security{]}) provides for single requests to blockwise transfers. The security of blockwise transfer in OSCOAP is reflected on in a dedicated section.},
}