%% You should probably cite rfc7371 instead of this I-D.
@techreport{ietf-6man-multicast-addr-arch-update-08,
    number =    {draft-ietf-6man-multicast-addr-arch-update-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-6man-multicast-addr-arch-update/08/},
    author =    {Mohamed Boucadair and Stig Venaas},
    title =     {{Updates to the IPv6 Multicast Addressing Architecture}},
    pagetotal = 10,
    year =      2014,
    month =     aug,
    day =       11,
    abstract =  {This document updates the IPv6 multicast addressing architecture by redefining the reserved bits as generic flag bits. The document also provides some clarifications related to the use of these flag bits. This document updates RFCs 3956, 3306, and 4291.},
}