Revision history for entry Derksen, A. A. (1993). "The seven sins of pseudo-science" [DERTSS]

NB: for privacy reasons, few details are provided in public revision histories.
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2015-03-17T07:26:49updateSystem / admin update -
2015-02-04T21:52:21updateSystem / admin update -
2013-11-22T09:31:29updateSystem / admin update -