Revision history for entry Petrus, Klaus (1996). "Naturgemässe klassifikation und kontinuität wissenschaft und geschichte" [PETNKU]

NB: for privacy reasons, few details are provided in public revision histories.
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2015-03-17T09:06:56updateSystem / admin update -
2015-02-04T21:52:53updateSystem / admin update -
2014-04-01T08:15:07updateSystem / admin update -
2013-11-22T09:31:39updateSystem / admin update -