Revision history for entry Segerberg, Krister (1973). "Two-dimensional modal logic" [SEGTML]

NB: for privacy reasons, few details are provided in public revision histories.
TimeTypeNotes
2014-01-23T21:53:21updateSystem / admin update -
2013-11-22T11:21:48updateSystem / admin update -
2013-11-01T17:08:44updateSystem / admin update -