%% You should probably cite draft-wang-lsr-prefix-unreachable-annoucement-12 instead of this revision.
@techreport{wang-lsr-prefix-unreachable-annoucement-04,
    number =    {draft-wang-lsr-prefix-unreachable-annoucement-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-wang-lsr-prefix-unreachable-annoucement/04/},
    author =    {Aijun Wang and Zhibo Hu and Yaqun Xiao and Gyan Mishra},
    title =     {{Prefix Unreachable Announcement}},
    pagetotal = 12,
    year =      2020,
    month =     nov,
    day =       2,
    abstract =  {This document describes a mechanism that can be used to announce the unreachable prefixes called PUA (Prefix Unreachable Announcement) in any OSPF multi area or ISIS multi level hierarchy where area summarizations exist.},
}