| article html file updated | 4 September 2026 00:07 CEST | Update | https://www.mdpi.com/1420-3049/31/12/2020 |
| article html file updated | 9 June 2026 15:32 CEST | Original file | N/A |
| article pdf uploaded. | 9 June 2026 15:30 CEST | Version of Record | https://www.mdpi.com/1420-3049/31/12/2020/pdf |
| article xml uploaded. | 9 June 2026 15:30 CEST | Update | https://www.mdpi.com/1420-3049/31/12/2020/xml |
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