Revision history for entry Burgess, John P. (1982). "Axioms for tense logic. II. Time periods" [JOHAFT-3]

NB: for privacy reasons, few details are provided in public revision histories.
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2013-12-01T19:35:53updateSystem / admin update -
2013-11-04T10:35:24updateSystem / admin update -
2013-11-04T09:37:38updateSystem / admin update -
2010-10-28T13:43:38updateSystem / admin update -
2010-10-01T19:44:39updateSystem / admin update -
2010-09-23T17:07:54addSystem / admin update -