%% You should probably cite rfc7794 instead of this I-D.
@techreport{ietf-isis-prefix-attributes-04,
    number =    {draft-ietf-isis-prefix-attributes-04},
    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-isis-prefix-attributes/04/},
    author =    {Les Ginsberg and Bruno Decraene and Stefano Previdi and Xiaohu Xu and Uma Chunduri},
    title =     {{IS-IS Prefix Attributes for Extended IPv4 and IPv6 Reachability}},
    pagetotal = 9,
    year =      2016,
    month =     jan,
    day =       4,
    abstract =  {This document introduces new sub-TLVs to support advertisement of IPv4 and IPv6 prefix attribute flags and the source router ID of the router that originated a prefix advertisement.},
}