| article html file updated | 31 August 2025 11:17 CEST | Update | https://www.mdpi.com/2412-382X/4/1/9 |
| article html file updated | 20 July 2022 19:48 CEST | Update | - |
| article html file updated | 24 March 2020 11:38 CET | Original file | - |
| article pdf uploaded. | 24 March 2020 11:36 CET | Updated version of record | https://www.mdpi.com/2412-382X/4/1/9/pdf |
| article xml uploaded. | 24 March 2020 11:36 CET | Update | https://www.mdpi.com/2412-382X/4/1/9/xml |
| article xml file uploaded | 24 March 2020 11:36 CET | Update | - |
| article pdf uploaded. | 10 February 2020 16:40 CET | Version of Record | https://www.mdpi.com/2412-382X/4/1/9/pdf-vor |
| article xml file uploaded | 10 February 2020 16:40 CET | Original file | - |
