| article html file updated | 31 August 2025 06:58 CEST | Update | https://www.mdpi.com/2223-7747/9/1/8 |
| article html file updated | 19 July 2022 21:18 CEST | Update | - |
| article html file updated | 14 February 2020 20:03 CET | Update | - |
| article html file updated | 5 February 2020 12:46 CET | Update | - |
| article html file updated | 19 December 2019 12:00 CET | Original file | - |
| article pdf uploaded. | 19 December 2019 11:58 CET | Version of Record | https://www.mdpi.com/2223-7747/9/1/8/pdf |
| article xml uploaded. | 19 December 2019 11:58 CET | Update | https://www.mdpi.com/2223-7747/9/1/8/xml |
| article xml file uploaded | 19 December 2019 11:58 CET | Original file | - |
