| article html file updated | 24 December 2025 23:57 CET | Update | https://www.mdpi.com/2227-9059/8/12/551 |
| article html file updated | 1 September 2025 14:48 CEST | Update | - |
| article html file updated | 22 August 2025 00:23 CEST | Update | - |
| article html file updated | 23 July 2022 03:09 CEST | Update | - |
| article html file updated | 30 November 2020 05:24 CET | Original file | - |
| article pdf uploaded. | 30 November 2020 05:23 CET | Updated version of record | https://www.mdpi.com/2227-9059/8/12/551/pdf |
| article xml uploaded. | 30 November 2020 05:23 CET | Update | https://www.mdpi.com/2227-9059/8/12/551/xml |
| article xml file uploaded | 30 November 2020 05:23 CET | Original file | - |
| article pdf uploaded. | 29 November 2020 15:26 CET | Version of Record | https://www.mdpi.com/2227-9059/8/12/551/pdf-vor |
