The Voynich Manuscript/Leo Levitov
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Levitov's claim of decipherment has been thoroughly discredited.
For a critique by linguistic science, by Jacques B.-M. Guy, see http://www.voynich.net/reeds/gillogly/levitov
For a critique by historical analysis, by Dennis J. Stallings, see http://www.geocities.com/ctesibos/voynich/levitov2.htm