| article html file updated | 31 August 2025 17:21 CEST | Update | https://www.mdpi.com/2223-7747/9/4/500 |
| article html file updated | 21 July 2022 01:49 CEST | Update | N/A |
| article html file updated | 9 May 2020 04:32 CEST | Update | N/A |
| article html file updated | 14 April 2020 11:49 CEST | Original file | N/A |
| article pdf uploaded. | 14 April 2020 11:48 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/500/pdf |
| article xml uploaded. | 14 April 2020 11:48 CEST | Update | https://www.mdpi.com/2223-7747/9/4/500/xml |
| article xml file uploaded | 14 April 2020 11:48 CEST | Original file | N/A |
