%% You should probably cite rfc6752 instead of this I-D.
@techreport{ietf-grow-private-ip-sp-cores-03,
    number =    {draft-ietf-grow-private-ip-sp-cores-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-grow-private-ip-sp-cores/03/},
    author =    {Anthony Kirkham},
    title =     {{Issues with Private IP Addressing in the Internet}},
    pagetotal = 15,
    year =      2012,
    month =     may,
    day =       7,
    abstract =  {The purpose of this document is to provide a discussion of the potential problems of using private, RFC1918, or non-globally- routable addressing within the core of an SP network. The discussion focuses on link addresses and to a small extent loopback addresses. While many of the issues are well recognised within the ISP community, there appears to be no document that collectively describes the issues.},
}