| article html file updated | 31 August 2025 14:47 CEST | Update | https://www.mdpi.com/2410-387X/4/1/9 |
| article html file updated | 20 July 2022 23:17 CEST | Update | - |
| article html file updated | 26 March 2020 13:48 CET | Original file | - |
| article pdf uploaded. | 26 March 2020 13:46 CET | Updated version of record | https://www.mdpi.com/2410-387X/4/1/9/pdf |
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| article pdf uploaded. | 18 March 2020 14:26 CET | Version of Record | https://www.mdpi.com/2410-387X/4/1/9/pdf-vor |
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