%% You should probably cite rfc5217 instead of this I-D.
@techreport{shimaoka-multidomain-pki-13,
    number =    {draft-shimaoka-multidomain-pki-13},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-shimaoka-multidomain-pki/13/},
    author =    {Nelson Hastings and Rebecca Nielsen and Masaki Shimaoka},
    title =     {{Memorandum for Multi-Domain Public Key Infrastructure Interoperability}},
    pagetotal = 29,
    year =      2008,
    month =     jun,
    day =       4,
    abstract =  {The objective of this document is to establish a terminology framework and to suggest the operational requirements of Public Key Infrastructure (PKI) domain for interoperability of multi-domain Public Key Infrastructure, where each PKI domain is operated under a distinct policy. This document describes the relationships between Certification Authorities (CAs), provides the definition and requirements for PKI domains, and discusses typical models of multi-domain PKI. This memo provides information for the Internet community.},
}