%% You should probably cite rfc3185 instead of this I-D.
@techreport{ietf-smime-rcek-04,
    number =    {draft-ietf-smime-rcek-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-smime-rcek/04/},
    author =    {Stephen Farrell and Sean Turner},
    title =     {{Reuse of CMS Content Encryption Keys}},
    pagetotal = 10,
    year =      2001,
    month =     may,
    day =       29,
    abstract =  {This document describes a way to include a key identifier in a CMS (Cryptographic Message Syntax) enveloped data structure, so that the content encryption key can be re-used for further enveloped data packets. {[}STANDARDS-TRACK{]}},
}