| article html file updated | 31 August 2025 17:34 CEST | Update | https://www.mdpi.com/2227-7390/8/4/609 |
| article html file updated | 21 July 2022 02:02 CEST | Update | - |
| article html file updated | 24 April 2020 05:38 CEST | Original file | - |
| article pdf uploaded. | 24 April 2020 05:36 CEST | Updated version of record | https://www.mdpi.com/2227-7390/8/4/609/pdf |
| article xml uploaded. | 24 April 2020 05:36 CEST | Update | https://www.mdpi.com/2227-7390/8/4/609/xml |
| article xml file uploaded | 24 April 2020 05:36 CEST | Update | - |
| article pdf uploaded. | 16 April 2020 11:51 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/4/609/pdf-vor |
| article xml file uploaded | 16 April 2020 11:51 CEST | Original file | - |
