| article html file updated | 17 August 2026 08:02 CEST | Update | https://www.mdpi.com/2224-2708/9/2/19 |
| article html file updated | 31 August 2025 16:35 CEST | Update | N/A |
| article html file updated | 21 July 2022 01:04 CEST | Update | N/A |
| article html file updated | 17 April 2020 11:20 CEST | Original file | N/A |
| article pdf uploaded. | 17 April 2020 11:19 CEST | Updated version of record | https://www.mdpi.com/2224-2708/9/2/19/pdf |
| article xml uploaded. | 17 April 2020 11:19 CEST | Update | https://www.mdpi.com/2224-2708/9/2/19/xml |
| article xml file uploaded | 17 April 2020 11:19 CEST | Update | N/A |
| article pdf uploaded. | 5 April 2020 19:47 CEST | Version of Record | https://www.mdpi.com/2224-2708/9/2/19/pdf-vor |
| article xml file uploaded | 5 April 2020 19:47 CEST | Original file | N/A |
