%% You should probably cite rfc1411 instead of this I-D.
@techreport{ietf-telnet-authker-v4-01,
    number =    {draft-ietf-telnet-authker-v4-01},
    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-telnet-authker-v4/01/},
    author =    {David A. Borman},
    title =     {{Telnet Authentication: Kerberos Version 4}},
    pagetotal = 4,
    year =      1992,
    month =     jul,
    day =       9,
    abstract =  {This memo defines an Experimental Protocol for the Internet community.},
}