| article html file updated | 20 August 2026 00:10 CEST | Update | https://www.mdpi.com/2218-1997/7/8/257 |
| article html file updated | 6 September 2025 21:27 CEST | Update | N/A |
| article html file updated | 27 July 2022 05:55 CEST | Update | N/A |
| article html file updated | 27 July 2021 03:32 CEST | Update | N/A |
| article pdf uploaded. | 27 July 2021 03:31 CEST | Updated version of record | https://www.mdpi.com/2218-1997/7/8/257/pdf |
| article xml uploaded. | 27 July 2021 03:31 CEST | Update | https://www.mdpi.com/2218-1997/7/8/257/xml |
| article xml file uploaded | 27 July 2021 03:31 CEST | Update | N/A |
| article html file updated | 22 July 2021 05:32 CEST | Original file | N/A |
| article pdf uploaded. | 22 July 2021 05:30 CEST | Version of Record | https://www.mdpi.com/2218-1997/7/8/257/pdf-vor |
| article xml file uploaded | 22 July 2021 05:30 CEST | Original file | N/A |
