| article html file updated | 25 December 2025 13:28 CET | Update | https://www.mdpi.com/2218-1997/7/6/187 |
| article html file updated | 2 September 2025 10:03 CEST | Update | N/A |
| article html file updated | 26 July 2022 23:04 CEST | Update | N/A |
| article html file updated | 9 June 2021 10:00 CEST | Update | N/A |
| article html file updated | 8 June 2021 16:18 CEST | Original file | N/A |
| article pdf uploaded. | 8 June 2021 16:16 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/6/187/pdf |
| article xml uploaded. | 8 June 2021 16:16 CEST | Update | https://www.mdpi.com/2218-1997/7/6/187/xml |
| article xml file uploaded | 8 June 2021 16:16 CEST | Update | N/A |
| article xml file uploaded | 6 June 2021 09:17 CEST | Update | N/A |
| article xml file uploaded | 6 June 2021 09:11 CEST | Original file | N/A |
| article pdf uploaded. | 6 June 2021 08:31 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/6/187/pdf-vor |
