%% You should probably cite rfc6410 instead of this I-D.
@techreport{housley-two-maturity-levels-09,
    number =    {draft-housley-two-maturity-levels-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-housley-two-maturity-levels/09/},
    author =    {Dave Crocker and Eric Burger and Russ Housley},
    title =     {{Reducing the Standards Track to Two Maturity Levels}},
    pagetotal = 6,
    year =      2011,
    month =     sep,
    day =       1,
    abstract =  {This document updates the Internet Engineering Task Force (IETF) Standards Process defined in RFC 2026. Primarily, it reduces the Standards Process from three Standards Track maturity levels to two. This memo documents an Internet Best Current Practice.},
}