%% You should probably cite rfc2193 instead of this I-D.
@techreport{gahrns-imap-mailbox-referral-00,
    number =    {draft-gahrns-imap-mailbox-referral-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-gahrns-imap-mailbox-referral/00/},
    author =    {Mike Gahrns},
    title =     {{IMAP4 Mailbox Referrals}},
    pagetotal = 9,
    year =      1997,
    month =     may,
    day =       18,
    abstract =  {Mailbox referrals allow clients to seamlessly access mailboxes that are distributed across several IMAP4 servers. {[}STANDARDS-TRACK{]}},
}