| article html file updated | 31 August 2025 16:18 CEST | Update | https://www.mdpi.com/2227-7390/8/4/509 |
| article html file updated | 21 July 2022 00:48 CEST | Update | - |
| article html file updated | 11 April 2020 10:19 CEST | Original file | - |
| article pdf uploaded. | 11 April 2020 10:17 CEST | Updated version of record | https://www.mdpi.com/2227-7390/8/4/509/pdf |
| article xml uploaded. | 11 April 2020 10:17 CEST | Update | https://www.mdpi.com/2227-7390/8/4/509/xml |
| article xml file uploaded | 11 April 2020 10:17 CEST | Update | - |
| article pdf uploaded. | 2 April 2020 16:09 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/4/509/pdf-vor |
| article xml file uploaded | 2 April 2020 16:09 CEST | Original file | - |
