%% You should probably cite rfc7094 instead of this I-D.
@techreport{iab-anycast-arch-implications-12,
    number =    {draft-iab-anycast-arch-implications-12},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-iab-anycast-arch-implications/12/},
    author =    {Danny R. McPherson and David R. Oran and Dave Thaler and Eric Osterweil},
    title =     {{Architectural Considerations of IP Anycast}},
    pagetotal = 22,
    year =      2013,
    month =     nov,
    day =       4,
    abstract =  {This memo discusses architectural implications of IP anycast and provides some historical analysis of anycast use by various IETF protocols.},
}