| article html file updated | 25 December 2025 00:06 CET | Update | https://www.mdpi.com/2218-1997/6/12/229 |
| article html file updated | 1 September 2025 15:05 CEST | Update | N/A |
| article html file updated | 23 July 2022 03:37 CEST | Update | N/A |
| article html file updated | 3 December 2020 07:30 CET | Original file | N/A |
| article pdf uploaded. | 3 December 2020 07:29 CET | Version of Record | https://www.mdpi.com/2218-1997/6/12/229/pdf |
| article xml uploaded. | 3 December 2020 07:29 CET | Update | https://www.mdpi.com/2218-1997/6/12/229/xml |
| article xml file uploaded | 3 December 2020 07:29 CET | Original file | N/A |
