| article html file updated | 1 September 2025 16:28 CEST | Update | https://www.mdpi.com/2223-7747/9/12/1804 |
| article html file updated | 23 July 2022 06:00 CEST | Update | - |
| article html file updated | 21 December 2020 07:34 CET | Update | - |
| article pdf uploaded. | 21 December 2020 07:32 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/12/1804/pdf |
| article xml uploaded. | 21 December 2020 07:32 CET | Update | https://www.mdpi.com/2223-7747/9/12/1804/xml |
| article xml file uploaded | 21 December 2020 07:32 CET | Update | - |
| article html file updated | 19 December 2020 08:52 CET | Original file | - |
| article pdf uploaded. | 19 December 2020 08:51 CET | Version of Record | https://www.mdpi.com/2223-7747/9/12/1804/pdf-vor |
| article xml uploaded. | 19 December 2020 08:51 CET | Update | - |
| article xml file uploaded | 19 December 2020 08:51 CET | Original file | - |
