| article html file updated | 20 August 2026 09:32 CEST | Update | https://www.mdpi.com/2218-1989/11/9/621 |
| article html file updated | 7 September 2025 00:49 CEST | Update | N/A |
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| article html file updated | 29 January 2022 08:42 CET | Update | N/A |
| article xml uploaded. | 29 January 2022 08:40 CET | Update | https://www.mdpi.com/2218-1989/11/9/621/xml |
| article pdf uploaded. | 29 January 2022 08:40 CET | Updated version of record | https://www.mdpi.com/2218-1989/11/9/621/pdf |
| article html file updated | 23 September 2021 16:59 CEST | Update | N/A |
| article pdf uploaded. | 23 September 2021 16:58 CEST | Updated version of record | https://www.mdpi.com/2218-1989/11/9/621/pdf-vor |
| article xml uploaded. | 23 September 2021 16:58 CEST | Update | N/A |
| article xml file uploaded | 23 September 2021 16:58 CEST | Update | N/A |
| article html file updated | 14 September 2021 05:33 CEST | Original file | N/A |
| article pdf uploaded. | 14 September 2021 05:32 CEST | Version of Record | https://www.mdpi.com/2218-1989/11/9/621/pdf-vor |
| article xml uploaded. | 14 September 2021 05:32 CEST | Update | N/A |
| article xml file uploaded | 14 September 2021 05:32 CEST | Original file | N/A |
