| article html file updated | 1 September 2025 07:47 CEST | Update | https://www.mdpi.com/2218-1997/6/9/146 |
| article html file updated | 22 July 2022 06:10 CEST | Update | - |
| article html file updated | 7 October 2020 11:43 CEST | Update | - |
| article html file updated | 13 September 2020 16:19 CEST | Update | - |
| article pdf uploaded. | 13 September 2020 16:18 CEST | Updated version of record | https://www.mdpi.com/2218-1997/6/9/146/pdf |
| article xml uploaded. | 13 September 2020 16:18 CEST | Update | https://www.mdpi.com/2218-1997/6/9/146/xml |
| article xml file uploaded | 13 September 2020 16:18 CEST | Update | - |
| article html file updated | 6 September 2020 11:41 CEST | Original file | - |
| article pdf uploaded. | 6 September 2020 11:40 CEST | Version of Record | https://www.mdpi.com/2218-1997/6/9/146/pdf-vor |
| article xml uploaded. | 6 September 2020 11:40 CEST | Update | - |
| article xml file uploaded | 6 September 2020 11:40 CEST | Original file | - |
