| article html file updated | 1 September 2025 10:44 CEST | Update | https://www.mdpi.com/2224-2708/9/4/47 |
| article html file updated | 22 July 2022 20:50 CEST | Update | N/A |
| article html file updated | 13 October 2020 14:47 CEST | Original file | N/A |
| article pdf uploaded. | 13 October 2020 14:46 CEST | Version of Record | https://www.mdpi.com/2224-2708/9/4/47/pdf |
| article xml uploaded. | 13 October 2020 14:46 CEST | Update | https://www.mdpi.com/2224-2708/9/4/47/xml |
| article xml file uploaded | 13 October 2020 14:46 CEST | Original file | N/A |
