%% You should probably cite rfc4402 instead of this I-D.
@techreport{ietf-kitten-krb5-gssapi-prf-04,
    number =    {draft-ietf-kitten-krb5-gssapi-prf-04},
    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-kitten-krb5-gssapi-prf/04/},
    author =    {Nicolás Williams},
    title =     {{A Pseudo-Random Function (PRF) for the Kerberos V Generic Security Service Application Program Interface (GSS-API) Mechanism}},
    pagetotal = 5,
    year =      2005,
    month =     jun,
    day =       14,
    abstract =  {This document defines the Pseudo-Random Function (PRF) for the Kerberos V mechanism for the Generic Security Service Application Program Interface (GSS-API), based on the PRF defined for the Kerberos V cryptographic framework, for keying application protocols given an established Kerberos V GSS-API security context. {[}STANDARDS-TRACK{]}},
}