| article html file updated | 2 September 2025 03:53 CEST | Update | https://www.mdpi.com/2227-9067/8/4/301 |
| article html file updated | 25 July 2022 12:18 CEST | Update | N/A |
| article html file updated | 19 April 2021 12:11 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2021 12:09 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/301/pdf |
| article xml uploaded. | 19 April 2021 12:09 CEST | Update | https://www.mdpi.com/2227-9067/8/4/301/xml |
| article xml file uploaded | 19 April 2021 12:09 CEST | Update | N/A |
| article html file updated | 15 April 2021 11:07 CEST | Original file | N/A |
| article pdf uploaded. | 15 April 2021 11:05 CEST | Version of Record | https://www.mdpi.com/2227-9067/8/4/301/pdf-vor |
| article xml file uploaded | 15 April 2021 11:05 CEST | Original file | N/A |
