%% You should probably cite rfc6111 instead of this I-D.
@techreport{ietf-krb-wg-naming-07,
    number =    {draft-ietf-krb-wg-naming-07},
    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-krb-wg-naming/07/},
    author =    {Larry Zhu},
    title =     {{Additional Kerberos Naming Constraints}},
    pagetotal = 6,
    year =      2008,
    month =     aug,
    day =       12,
    abstract =  {This document defines new naming constraints for well-known Kerberos principal names and well-known Kerberos realm names. {[}STANDARDS- TRACK{]}},
}