| article html file updated | 31 August 2025 16:45 CEST | Update | https://www.mdpi.com/2226-4310/7/4/39 |
| article html file updated | 21 July 2022 01:15 CEST | Update | N/A |
| article html file updated | 8 April 2020 06:31 CEST | Original file | N/A |
| article pdf uploaded. | 8 April 2020 06:29 CEST | Version of Record | https://www.mdpi.com/2226-4310/7/4/39/pdf |
| article xml uploaded. | 8 April 2020 06:29 CEST | Update | https://www.mdpi.com/2226-4310/7/4/39/xml |
| article xml file uploaded | 8 April 2020 06:29 CEST | Original file | N/A |
