| article html file updated | 31 August 2025 10:27 CEST | Update | https://www.mdpi.com/2223-7747/9/2/175 |
| article html file updated | 20 July 2022 18:57 CEST | Update | N/A |
| article html file updated | 6 March 2020 08:39 CET | Update | N/A |
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| article pdf uploaded. | 1 February 2020 12:12 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/175/pdf |
| article xml uploaded. | 1 February 2020 12:12 CET | Update | https://www.mdpi.com/2223-7747/9/2/175/xml |
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