%% You should probably cite rfc5273 instead of this I-D.
@techreport{ietf-pkix-cmc-trans-08,
    number =    {draft-ietf-pkix-cmc-trans-08},
    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-pkix-cmc-trans/08/},
    author =    {Michael Myers and Jim Schaad},
    title =     {{Certificate Management over CMS (CMC): Transport Protocols}},
    pagetotal = 7,
    year =      2008,
    month =     mar,
    day =       10,
    abstract =  {This document defines a number of transport mechanisms that are used to move CMC (Certificate Management over CMS (Cryptographic Message Syntax)) messages. The transport mechanisms described in this document are HTTP, file, mail, and TCP. {[}STANDARDS-TRACK{]}},
}