%% You should probably cite rfc6118 instead of this I-D.
@techreport{ietf-enum-enumservices-transition-06,
    number =    {draft-ietf-enum-enumservices-transition-06},
    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-enum-enumservices-transition/06/},
    author =    {Bernie Hoeneisen and Alexander Mayrhofer},
    title =     {{Update of Legacy IANA Registrations of Enumservices}},
    pagetotal = 68,
    year =      2010,
    month =     jul,
    day =       1,
    abstract =  {This document revises all Enumservices that were IANA registered under the now obsolete specification of the Enumservice registry defined in RFC 3761. {[}STANDARDS-TRACK{]}},
}