%% You should probably cite rfc5957 instead of this I-D.
@techreport{ietf-morg-sortdisplay-03,
    number =    {draft-ietf-morg-sortdisplay-03},
    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-morg-sortdisplay/03/},
    author =    {Dan Karp},
    title =     {{Display-Based Address Sorting for the IMAP4 SORT Extension}},
    pagetotal = 5,
    year =      2010,
    month =     feb,
    day =       25,
    abstract =  {This document describes an IMAP protocol extension enabling server- side message sorting on the commonly displayed portion of the From and To header fields. {[}STANDARDS-TRACK{]}},
}