| article html file updated | 31 August 2025 00:36 CEST | Update | https://www.mdpi.com/2072-6643/11/9/2021 |
| article html file updated | 20 July 2022 04:26 CEST | Update | N/A |
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| article html file updated | 28 August 2019 12:32 CEST | Original file | N/A |
| article pdf uploaded. | 28 August 2019 12:30 CEST | Version of Record | https://www.mdpi.com/2072-6643/11/9/2021/pdf |
| article xml uploaded. | 28 August 2019 12:30 CEST | Update | https://www.mdpi.com/2072-6643/11/9/2021/xml |
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