| article html file updated | 25 December 2025 21:13 CET | Update | https://www.mdpi.com/2218-1997/7/8/309 |
| article html file updated | 6 September 2025 23:20 CEST | Update | N/A |
| article html file updated | 28 July 2022 07:06 CEST | Update | N/A |
| article html file updated | 24 August 2021 12:24 CEST | Original file | N/A |
| article pdf uploaded. | 24 August 2021 12:23 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/8/309/pdf |
| article xml uploaded. | 24 August 2021 12:23 CEST | Update | https://www.mdpi.com/2218-1997/7/8/309/xml |
| article xml file uploaded | 24 August 2021 12:23 CEST | Original file | N/A |
| article pdf uploaded. | 21 August 2021 08:40 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/8/309/pdf-vor |
