[BCP8]     Best Current Practice 8,
              <https://www.rfc-editor.org/info/bcp8>.
              At the time of writing, this BCP comprises the following:

              Weinrib, A. and J. Postel, "IRTF Research Group Guidelines
              and Procedures", BCP 8, RFC 2014, DOI 10.17487/RFC2014,
              October 1996, <https://www.rfc-editor.org/info/rfc2014>.