%% You should probably cite rfc8494 instead of this I-D.
@techreport{melnikov-email-over-pmul-02,
    number =    {draft-melnikov-email-over-pmul-02},
    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-email-over-pmul/02/},
    author =    {David Wilson and Alexey Melnikov},
    title =     {{Mail Transfer Protocol over ACP 142}},
    pagetotal = 14,
    year =      2017,
    month =     oct,
    day =       28,
    abstract =  {ACP 142 defines P\_Mul, which is a protocol for reliable multicast in bandwidth constrained and delayed acknowledgement (EMCON) environments running over UDP. This document is a specification of the basic protocol for electronic mail transfer over P\_MUL. It also described how to gateway this basic protocol to/from Simple Mail Transfer Protocol (RFC 5321).},
}