| article html file updated | 31 August 2025 11:36 CEST | Update | https://www.mdpi.com/2223-7747/9/2/243 |
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| article html file updated | 6 March 2020 09:24 CET | Update | - |
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| article pdf uploaded. | 28 February 2020 17:32 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/243/pdf |
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| article pdf uploaded. | 13 February 2020 16:42 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/243/pdf-vor |
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