Revision history for entry Harrop, Ronald: Jan Łukasiewicz. A system of modal logic. Actes du Xlème Congr.. [HARUJA]

NB: for privacy reasons, few details are provided in public revision histories.
TimeTypeNotes
2019-06-06T13:49:07updateSystem / admin update
2017-01-16T21:03:59updateSystem / admin update
2016-06-30T14:32:54updateSystem / admin update
2016-06-30T12:47:18addSystem / admin update