Froscher, J. N., M. H. Kang, J. P. McDermott, O. Costich, and C. E. Landwehr,
  "A Practical Approach to High Assurance Multilevel Secure Computing Service,"
  submitted to Tenth Annual Computer Security Applications, Orlando, FL, 
  Dec., 1994.
<a href="1994froscher-acsac.ps">
 PostScript</a>

<blockquote>
Current projects to provide MLS computing services rarely seem to
exploit advances in related fields.  Specifically, the concepts of data
distribution, replication, and interoperation are currently receiving
much attention in the commercial database system sector but have yet to
be applied to the delivery of MLS computing services.  This paper
explains how these concepts might be applied to help deliver MLS
computing services relatively quickly and cheaply, and how they can
ease integration of legacy systems and new technology into future MLS
cooperative, distributed computing environments.
</blockquote>