This material is based upon work supported by the Department of
Commerce, the Library of Congress, and the National Science
Foundation under Grant No. EEC-9209623, and by the
National Science Foundation under Grant No. IRI-9523419 and
the Department of the Navy and Office of the Chief of
Naval Research, under Grant No. N00014-95-1-1198.
The content of the information does not necessarily reflect
the position or the policy of the Government or the National
Science Foundation and no official endorsement
should be inferred.
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