| article html file updated | 1 September 2025 14:15 CEST | Update | https://www.mdpi.com/2075-1702/8/4/81 |
| article html file updated | 23 July 2022 02:18 CEST | Update | - |
| article html file updated | 25 November 2020 06:37 CET | Update | - |
| article pdf uploaded. | 25 November 2020 06:35 CET | Updated version of record | https://www.mdpi.com/2075-1702/8/4/81/pdf |
| article xml uploaded. | 25 November 2020 06:35 CET | Update | https://www.mdpi.com/2075-1702/8/4/81/xml |
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| article html file updated | 24 November 2020 10:30 CET | Original file | - |
| article pdf uploaded. | 24 November 2020 10:26 CET | Version of Record | https://www.mdpi.com/2075-1702/8/4/81/pdf-vor |
| article xml uploaded. | 24 November 2020 10:26 CET | Update | - |
| article xml file uploaded | 24 November 2020 10:26 CET | Original file | - |
