| article html file updated | 1 September 2025 12:38 CEST | Update | https://www.mdpi.com/2226-4787/8/4/206 |
| article html file updated | 22 July 2022 23:41 CEST | Update | - |
| article html file updated | 4 November 2020 08:18 CET | Original file | - |
| article pdf uploaded. | 4 November 2020 08:17 CET | Updated version of record | https://www.mdpi.com/2226-4787/8/4/206/pdf |
| article xml uploaded. | 4 November 2020 08:17 CET | Update | https://www.mdpi.com/2226-4787/8/4/206/xml |
| article xml file uploaded | 4 November 2020 08:17 CET | Original file | - |
| article pdf uploaded. | 3 November 2020 13:17 CET | Version of Record | https://www.mdpi.com/2226-4787/8/4/206/pdf-vor |
