%% You should probably cite draft-ietf-imapext-condstore instead of this I-D.
@techreport{melnikov-imap-condstore-09,
    number =    {draft-melnikov-imap-condstore-09},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-melnikov-imap-condstore/09/},
    author =    {Alexey Melnikov and Steve Hole},
    title =     {{IMAP Extension for Conditional STORE operation}},
    pagetotal = 0,
    year =      2003,
    month =     jan,
    day =       6,
    abstract =  {Often, multiple IMAP clients need to coordinate changes to a common IMAP mailbox. Examples include different clients for the same user, and multiple users accessing shared mailboxes. These clients need a mechanism to synchronize state changes for messages within the mailbox. They must be able to guarantee that only one client can change message state (e.g., message flags or annotations) at any time. An example of such an application is use of an IMAP mailbox as a message queue with multiple dequeueing clients. The Conditional Store facility provides a protected update mechanism for message state information that can detect and resolve conflicts between multiple writers.},
}