%% You should probably cite rfc2331 instead of this I-D.
@techreport{ietf-ion-sig-uni4.0-04,
    number =    {draft-ietf-ion-sig-uni4.0-04},
    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-ion-sig-uni4.0/04/},
    author =    {Maryann Perez Maher},
    title =     {{ATM Signalling Support for IP over ATM - UNI Signalling 4.0 Update}},
    pagetotal = 26,
    year =      1997,
    month =     jun,
    day =       2,
    abstract =  {This memo describes how to efficiently use the ATM call control signalling procedures defined in UNI Signalling 4.0 to support IP over ATM environments as described in RFC 2225 and in RFC 2332. {[}STANDARDS-TRACK{]}},
}