| article html file updated | 26 June 2025 20:59 CEST | Update | https://www.mdpi.com/2227-9717/12/9/2021 |
| article html file updated | 20 September 2024 06:15 CEST | Original file | N/A |
| article pdf uploaded. | 20 September 2024 06:13 CEST | Updated version of record | https://www.mdpi.com/2227-9717/12/9/2021/pdf |
| article xml uploaded. | 20 September 2024 06:13 CEST | Update | https://www.mdpi.com/2227-9717/12/9/2021/xml |
| article xml file uploaded | 20 September 2024 06:13 CEST | Original file | N/A |
| article pdf uploaded. | 19 September 2024 16:06 CEST | Version of Record | https://www.mdpi.com/2227-9717/12/9/2021/pdf-vor |
