%% You should probably cite rfc7346 instead of this I-D.
@techreport{ietf-6man-multicast-scopes-03,
    number =    {draft-ietf-6man-multicast-scopes-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-6man-multicast-scopes/03/},
    author =    {Ralph Droms},
    title =     {{IPv6 Multicast Address Scopes}},
    pagetotal = 5,
    year =      2014,
    month =     feb,
    day =       14,
    abstract =  {This document updates the definitions of IPv6 multicast scopes.},
}