%% You should probably cite rfc3348 instead of this I-D.
@techreport{gahrns-imap-child-mailbox-04,
    number =    {draft-gahrns-imap-child-mailbox-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-gahrns-imap-child-mailbox/04/},
    author =    {Raymond Cheng and Mike Gahrns},
    title =     {{The Internet Message Action Protocol (IMAP4) Child Mailbox Extension}},
    pagetotal = 6,
    year =      2002,
    month =     feb,
    day =       21,
    abstract =  {The CHILDREN extension provides a mechanism for a client to efficiently determine if a particular mailbox has children, without issuing a LIST '' * or a LIST '' \% for each mailbox name.},
}