| article html file updated | 31 August 2025 10:16 CEST | Update | https://www.mdpi.com/2079-3197/8/1/9 |
| article html file updated | 20 July 2022 18:47 CEST | Update | - |
| article html file updated | 25 March 2020 12:47 CET | Original file | - |
| article pdf uploaded. | 25 March 2020 12:45 CET | Updated version of record | https://www.mdpi.com/2079-3197/8/1/9/pdf |
| article xml uploaded. | 25 March 2020 12:45 CET | Update | https://www.mdpi.com/2079-3197/8/1/9/xml |
| article xml file uploaded | 25 March 2020 12:45 CET | Update | - |
| article pdf uploaded. | 30 January 2020 10:10 CET | Version of Record | https://www.mdpi.com/2079-3197/8/1/9/pdf-vor |
| article xml file uploaded | 30 January 2020 10:10 CET | Original file | - |
