| article html file updated | 1 September 2025 10:12 CEST | Update | https://www.mdpi.com/2227-7099/8/4/81 |
| article html file updated | 22 July 2022 09:46 CEST | Update | - |
| article html file updated | 6 October 2020 10:29 CEST | Original file | - |
| article pdf uploaded. | 6 October 2020 10:28 CEST | Version of Record | https://www.mdpi.com/2227-7099/8/4/81/pdf |
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