| article html file updated | 1 September 2025 17:26 CEST | Update | https://www.mdpi.com/1424-8220/21/1/209 |
| article html file updated | 23 July 2022 08:57 CEST | Update | - |
| article html file updated | 5 January 2021 04:03 CET | Update | - |
| article pdf uploaded. | 5 January 2021 04:02 CET | Updated version of record | https://www.mdpi.com/1424-8220/21/1/209/pdf |
| article xml uploaded. | 5 January 2021 04:02 CET | Update | https://www.mdpi.com/1424-8220/21/1/209/xml |
| article xml file uploaded | 5 January 2021 04:01 CET | Update | - |
| article html file updated | 31 December 2020 08:32 CET | Original file | - |
| article pdf uploaded. | 31 December 2020 08:30 CET | Version of Record | https://www.mdpi.com/1424-8220/21/1/209/pdf-vor |
| article xml uploaded. | 31 December 2020 08:30 CET | Update | - |
| article xml file uploaded | 31 December 2020 08:30 CET | Original file | - |
