Public Domain
=============

This material was prepared as an account of work sponsored by the
United States Government.  Neither the United States, nor the
Department of Energy, nor the Department of Defense, nor any of
their employees, nor any of their contractors, subcontractors, or
their employees, makes any warranty, expressed or implied, or
assumes any legal liability or responsibility for the accuracy,
completeness, or usefulness of any information, apparatus, product,
or process disclosed, or represents that its use would not infringe
upon privately owned rights.
