| article html file updated | 31 August 2025 23:56 CEST | Update | https://www.mdpi.com/2223-7747/9/6/759 |
| article html file updated | 21 July 2022 21:11 CEST | Update | - |
| article html file updated | 6 July 2020 13:02 CEST | Update | - |
| article html file updated | 18 June 2020 02:59 CEST | Original file | - |
| article pdf uploaded. | 18 June 2020 02:58 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/6/759/pdf |
| article xml uploaded. | 18 June 2020 02:58 CEST | Update | https://www.mdpi.com/2223-7747/9/6/759/xml |
| article xml file uploaded | 18 June 2020 02:58 CEST | Original file | - |
| article pdf uploaded. | 17 June 2020 15:53 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/6/759/pdf-vor |
