Revision history for entry Leydesdorff, Loet: Luhmann's sociological theory: its operationalization and f.. [LEYLST]

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2022-02-15T15:34:39updateSystem / admin update
2022-02-04T06:22:18updateSystem / admin update
2020-07-18T13:11:54updateSystem / admin update
2019-02-11T14:44:32updateSystem / admin update
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2016-12-16T09:25:23addSystem / admin update