%% You should probably cite rfc3194 instead of this I-D.
@techreport{durand-huitema-h-density-ratio-02,
    number =    {draft-durand-huitema-h-density-ratio-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-durand-huitema-h-density-ratio/02/},
    author =    {Christian Huitema and Alain Durand},
    title =     {{The H-Density Ratio for Address Assignment Efficiency An Update on the H ratio}},
    pagetotal = 7,
    year =      2001,
    month =     sep,
    day =       7,
    abstract =  {This document provides an update on the "H ratio" defined in RFC 1715. It defines a new ratio which the authors claim is easier to understand. This memo provides information for the Internet community.},
}