%% You should probably cite draft-ietf-core-problem-details instead of this I-D. @techreport{fossati-core-coap-problem-02, number = {draft-fossati-core-coap-problem-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-fossati-core-coap-problem/02/}, author = {Thomas Fossati and Jaime Jimenez}, title = {{Problem Details For CoAP APIs}}, pagetotal = 12, year = 2020, month = mar, day = 5, abstract = {This document defines a "problem detail" as a way to carry machine- readable details of errors in a CoAP response to avoid the need to define new error response formats for CoAP APIs.}, }