%% You should probably cite rfc1328 instead of this I-D.
@techreport{ietf-kille-88to84downgrade-01,
    number =    {draft-ietf-kille-88to84downgrade-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-kille-88to84downgrade/01/},
    author =    {Steve Kille},
    title =     {{X.400 1988 to 1984 downgrading}},
    pagetotal = 5,
    year =      1991,
    month =     sep,
    day =       4,
    abstract =  {This document considers issues of downgrading from X.400(1988) to X.400(1984) {[}MHS88a, MHS84{]}. Annexe B of X.419 specifies some downgrading rules {[}MHS88b{]}, but these are not sufficient for provision of service in an environment containing both 1984 and 1988 components. This document defines a number of extensions to this annexe. {[}STANDARDS-TRACK{]}},
}