| article html file updated | 31 August 2025 22:11 CEST | Update | https://www.mdpi.com/2075-4663/8/6/81 |
| article html file updated | 21 July 2022 06:35 CEST | Update | N/A |
| article html file updated | 12 June 2020 11:57 CEST | Original file | N/A |
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| article pdf uploaded. | 31 May 2020 10:51 CEST | Version of Record | https://www.mdpi.com/2075-4663/8/6/81/pdf-vor |
