| article html file updated | 2 September 2025 04:12 CEST | Update | https://www.mdpi.com/2227-9067/8/4/307 |
| article html file updated | 25 July 2022 12:42 CEST | Update | - |
| article html file updated | 20 April 2021 10:14 CEST | Update | - |
| article pdf uploaded. | 20 April 2021 10:09 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/307/pdf |
| article xml uploaded. | 20 April 2021 10:09 CEST | Update | https://www.mdpi.com/2227-9067/8/4/307/xml |
| article xml file uploaded | 20 April 2021 10:09 CEST | Update | - |
| article html file updated | 19 April 2021 03:35 CEST | Update | - |
| article pdf uploaded. | 19 April 2021 03:34 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/307/pdf-vor |
| article xml file uploaded | 19 April 2021 03:34 CEST | Update | - |
| article html file updated | 17 April 2021 12:13 CEST | Original file | - |
| article pdf uploaded. | 17 April 2021 12:11 CEST | Version of Record | https://www.mdpi.com/2227-9067/8/4/307/pdf-vor |
| article xml file uploaded | 17 April 2021 12:11 CEST | Original file | - |
