| article html file updated | 1 September 2025 19:30 CEST | Update | https://www.mdpi.com/2227-9040/9/2/21 |
| article html file updated | 23 July 2022 23:59 CEST | Update | - |
| article html file updated | 25 January 2021 11:05 CET | Update | - |
| article pdf uploaded. | 25 January 2021 11:03 CET | Updated version of record | https://www.mdpi.com/2227-9040/9/2/21/pdf |
| article xml uploaded. | 25 January 2021 11:03 CET | Update | https://www.mdpi.com/2227-9040/9/2/21/xml |
| article xml file uploaded | 25 January 2021 11:03 CET | Update | - |
| article html file updated | 23 January 2021 07:28 CET | Original file | - |
| article pdf uploaded. | 23 January 2021 07:27 CET | Version of Record | https://www.mdpi.com/2227-9040/9/2/21/pdf-vor |
| article xml uploaded. | 23 January 2021 07:27 CET | Update | - |
| article xml file uploaded | 23 January 2021 07:27 CET | Original file | - |
