| article html file updated | 2 September 2025 04:23 CEST | Update | https://www.mdpi.com/2227-9067/8/4/310 |
| article html file updated | 25 July 2022 12:57 CEST | Update | N/A |
| article html file updated | 22 April 2021 11:20 CEST | Update | N/A |
| article pdf uploaded. | 22 April 2021 11:18 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/310/pdf |
| article xml uploaded. | 22 April 2021 11:18 CEST | Update | https://www.mdpi.com/2227-9067/8/4/310/xml |
| article xml file uploaded | 22 April 2021 11:18 CEST | Update | N/A |
| article html file updated | 20 April 2021 05:28 CEST | Original file | N/A |
| article pdf uploaded. | 20 April 2021 05:27 CEST | Updated version of record | https://www.mdpi.com/2227-9067/8/4/310/pdf-vor |
| article xml file uploaded | 20 April 2021 05:27 CEST | Original file | N/A |
| article pdf uploaded. | 19 April 2021 16:20 CEST | Version of Record | https://www.mdpi.com/2227-9067/8/4/310/pdf-vor |
