| article html file updated | 24 December 2025 18:12 CET | Update | https://www.mdpi.com/2223-7747/9/4/431 |
| article html file updated | 31 August 2025 16:05 CEST | Update | - |
| article html file updated | 21 July 2022 00:34 CEST | Update | - |
| article html file updated | 9 May 2020 04:25 CEST | Update | - |
| article html file updated | 3 April 2020 07:34 CEST | Original file | - |
| article pdf uploaded. | 3 April 2020 07:32 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/431/pdf |
| article xml uploaded. | 3 April 2020 07:32 CEST | Update | https://www.mdpi.com/2223-7747/9/4/431/xml |
| article xml file uploaded | 3 April 2020 07:32 CEST | Update | - |
| article pdf uploaded. | 1 April 2020 10:57 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/431/pdf-vor |
| article xml file uploaded | 1 April 2020 10:57 CEST | Original file | - |
