| article html file updated | 7 September 2025 09:09 CEST | Update | https://www.mdpi.com/2379-139X/7/4/81 |
| article html file updated | 30 July 2022 23:03 CEST | Update | - |
| article html file updated | 21 December 2021 03:35 CET | Update | - |
| article pdf uploaded. | 21 December 2021 03:33 CET | Updated version of record | https://www.mdpi.com/2379-139X/7/4/81/pdf |
| article xml uploaded. | 21 December 2021 03:33 CET | Update | https://www.mdpi.com/2379-139X/7/4/81/xml |
| article xml file uploaded | 21 December 2021 03:33 CET | Update | - |
| article html file updated | 21 December 2021 03:15 CET | Update | - |
| article pdf uploaded. | 21 December 2021 03:13 CET | Updated version of record | https://www.mdpi.com/2379-139X/7/4/81/pdf-vor |
| article xml uploaded. | 21 December 2021 03:13 CET | Update | - |
| article xml file uploaded | 21 December 2021 03:13 CET | Update | - |
| article html file updated | 21 December 2021 03:10 CET | Update | - |
| article pdf uploaded. | 21 December 2021 03:09 CET | Updated version of record | https://www.mdpi.com/2379-139X/7/4/81/pdf-vor |
| article xml uploaded. | 21 December 2021 03:09 CET | Update | - |
| article xml file uploaded | 21 December 2021 03:09 CET | Update | - |
| article html file updated | 18 December 2021 04:41 CET | Original file | - |
| article pdf uploaded. | 18 December 2021 04:40 CET | Version of Record | https://www.mdpi.com/2379-139X/7/4/81/pdf-vor |
| article xml file uploaded | 18 December 2021 04:40 CET | Update | - |
| article xml uploaded. | 18 December 2021 04:40 CET | Original file | - |
