%% You should probably cite rfc8904 instead of this I-D.
@techreport{vesely-authmethod-dnswl-01,
    number =    {draft-vesely-authmethod-dnswl-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-vesely-authmethod-dnswl/01/},
    author =    {Alessandro Vesely},
    title =     {{DNSxL Email Authentication Method Extension}},
    pagetotal = 8,
    year =      2013,
    month =     aug,
    day =       1,
    abstract =  {This document describes a method that can be registered within the Email Authentication Methods IANA registry created by RFC 5451. The method consists in looking up a DNS white or black list, and interpreting any returned data.},
}