Revision history for entry Gabbay, Dov; Guenthner, Franz (1989). "Handbook of Philosophical Logic" [GABHOP]

NB: for privacy reasons, few details are provided in public revision histories.
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2015-02-13T17:39:01updateSystem / admin update -
2015-02-06T06:10:59updateSystem / admin update -
2010-06-22T16:48:30updateSystem / admin update -