| article html file updated | 31 August 2025 12:00 CEST | Update | https://www.mdpi.com/2223-7747/9/2/268 |
| article html file updated | 20 July 2022 20:31 CEST | Update | - |
| article html file updated | 6 March 2020 09:40 CET | Update | - |
| article html file updated | 19 February 2020 08:16 CET | Original file | - |
| article pdf uploaded. | 19 February 2020 08:15 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/268/pdf |
| article xml uploaded. | 19 February 2020 08:15 CET | Update | https://www.mdpi.com/2223-7747/9/2/268/xml |
| article xml file uploaded | 19 February 2020 08:15 CET | Update | - |
| article pdf uploaded. | 18 February 2020 14:16 CET | Updated version of record | https://www.mdpi.com/2223-7747/9/2/268/pdf-vor |
| article xml file uploaded | 18 February 2020 14:16 CET | Update | - |
| article pdf uploaded. | 18 February 2020 14:15 CET | Version of Record | https://www.mdpi.com/2223-7747/9/2/268/pdf-vor |
| article xml file uploaded | 18 February 2020 14:15 CET | Original file | - |
