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Revision history for entry Bernardi, Claudio; Sorbi, Andrea (1983). "Classifying positive equivalence relations" [BERCPE]

NB: for privacy reasons, few details are provided in public revision histories.
2015-02-05T07:07:09updateSystem / admin update -
2013-11-22T12:03:27updateSystem / admin update -
2013-11-04T09:23:40updateSystem / admin update -