| article html file updated | 1 September 2025 18:57 CEST | Update | https://www.mdpi.com/2221-3759/9/1/2 |
| article html file updated | 23 July 2022 18:42 CEST | Update | - |
| article html file updated | 27 January 2021 10:13 CET | Update | - |
| article pdf uploaded. | 27 January 2021 10:11 CET | Updated version of record | https://www.mdpi.com/2221-3759/9/1/2/pdf |
| article xml uploaded. | 27 January 2021 10:11 CET | Update | https://www.mdpi.com/2221-3759/9/1/2/xml |
| article xml file uploaded | 27 January 2021 10:11 CET | Update | - |
| article html file updated | 18 January 2021 11:21 CET | Original file | - |
| article pdf uploaded. | 18 January 2021 11:19 CET | Version of Record | https://www.mdpi.com/2221-3759/9/1/2/pdf-vor |
| article xml uploaded. | 18 January 2021 11:19 CET | Update | - |
| article xml file uploaded | 18 January 2021 11:19 CET | Original file | - |
