| article html file updated | 7 September 2025 10:03 CEST | Update | https://www.mdpi.com/2218-1997/8/1/4 |
| article html file updated | 22 August 2025 01:42 CEST | Update | - |
| article html file updated | 31 July 2022 00:12 CEST | Update | - |
| article html file updated | 24 December 2021 09:31 CET | Original file | - |
| article pdf uploaded. | 24 December 2021 09:30 CET | Updated version of record | https://www.mdpi.com/2218-1997/8/1/4/pdf |
| article xml uploaded. | 24 December 2021 09:30 CET | Update | https://www.mdpi.com/2218-1997/8/1/4/xml |
| article xml file uploaded | 24 December 2021 09:30 CET | Original file | - |
| article pdf uploaded. | 23 December 2021 16:14 CET | Version of Record | https://www.mdpi.com/2218-1997/8/1/4/pdf-vor |
