| article html file updated | 25 December 2025 12:23 CET | Update | https://www.mdpi.com/2227-9067/8/6/451 |
| article html file updated | 2 September 2025 08:51 CEST | Update | N/A |
| article html file updated | 26 July 2022 21:27 CEST | Update | N/A |
| article html file updated | 2 June 2021 04:30 CEST | Original file | N/A |
| article pdf uploaded. | 2 June 2021 04:29 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/6/451/pdf |
| article xml uploaded. | 2 June 2021 04:29 CEST | Update | https://www.mdpi.com/2227-9067/8/6/451/xml |
| article xml file uploaded | 2 June 2021 04:29 CEST | Original file | N/A |
| article pdf uploaded. | 26 May 2021 15:49 CEST | Version of Record | https://www.mdpi.com/2227-9067/8/6/451/pdf-vor |
