%% You should probably cite rfc6569 instead of this I-D.
@techreport{ietf-codec-guidelines-08,
    number =    {draft-ietf-codec-guidelines-08},
    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-codec-guidelines/08/},
    author =    {Jean-Marc Valin and Slava Borilin and Koen Vos and Christopher Montgomery and Juin-Hwey Chen},
    title =     {{Guidelines for Development of an Audio Codec within the IETF}},
    pagetotal = 14,
    year =      2012,
    month =     jan,
    day =       10,
    abstract =  {This document provides general guidelines for work on developing and specifying an interactive audio codec within the IETF. These guidelines cover the development process, evaluation, requirements conformance, and intellectual property issues. This document is not an Internet Standards Track specification; it is published for informational purposes.},
}