%% You should probably cite draft-ietf-krb-wg-iakerb instead of this I-D.
@techreport{zhu-ws-kerb-03,
    number =    {draft-zhu-ws-kerb-03},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zhu-ws-kerb/03/},
    author =    {Larry Zhu and Jeffrey E. Altman},
    title =     {{Initial and Pass Through Authentication Using Kerberos V5 and the GSS- API (IAKERB)}},
    pagetotal = 11,
    year =      2007,
    month =     jul,
    day =       9,
    abstract =  {This document defines extensions to the Kerberos protocol and the GSS-API Kerberos mechanism that enable a GSS-API Kerberos client to exchange messages with the KDC using the GSS-API acceptor as the proxy, by encapsulating the Kerberos messages inside GSS-API tokens. With these extensions a client can obtain Kerberos tickets for services where the KDC is not accessible to the client, but is accessible to the application server.},
}