| article html file updated | 31 August 2025 17:10 CEST | Update | https://www.mdpi.com/2223-7747/9/4/493 |
| article html file updated | 21 July 2022 01:39 CEST | Update | - |
| article html file updated | 9 May 2020 04:32 CEST | Update | - |
| article html file updated | 23 April 2020 16:57 CEST | Original file | - |
| article pdf uploaded. | 23 April 2020 16:56 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/493/pdf |
| article xml uploaded. | 23 April 2020 16:56 CEST | Update | https://www.mdpi.com/2223-7747/9/4/493/xml |
| article xml file uploaded | 23 April 2020 16:56 CEST | Update | - |
| article pdf uploaded. | 11 April 2020 16:50 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/493/pdf-vor |
| article xml file uploaded | 11 April 2020 16:50 CEST | Original file | - |
