| article html file updated | 25 December 2025 01:14 CET | Update | https://www.mdpi.com/2227-9067/8/1/18 |
| article html file updated | 1 September 2025 17:28 CEST | Update | - |
| article html file updated | 22 August 2025 00:29 CEST | Update | - |
| article html file updated | 23 July 2022 09:02 CEST | Update | - |
| article html file updated | 31 December 2020 16:00 CET | Update | - |
| article pdf uploaded. | 31 December 2020 15:59 CET | Updated version of record | https://www.mdpi.com/2227-9067/8/1/18/pdf |
| article html file updated | 31 December 2020 12:40 CET | Update | - |
| article pdf uploaded. | 31 December 2020 12:39 CET | Updated version of record | - |
| article xml uploaded. | 31 December 2020 12:39 CET | Update | https://www.mdpi.com/2227-9067/8/1/18/xml |
| article xml file uploaded | 31 December 2020 12:39 CET | Update | - |
| article html file updated | 31 December 2020 10:15 CET | Original file | - |
| article pdf uploaded. | 31 December 2020 10:14 CET | Version of Record | - |
| article xml uploaded. | 31 December 2020 10:14 CET | Update | - |
| article xml file uploaded | 31 December 2020 10:14 CET | Original file | - |
