| article html file updated | 17 August 2026 09:24 CEST | Update | https://www.mdpi.com/2226-4310/7/4/48 |
| article html file updated | 31 August 2025 17:55 CEST | Update | N/A |
| article html file updated | 21 July 2022 02:23 CEST | Update | N/A |
| article html file updated | 21 April 2020 04:36 CEST | Original file | N/A |
| article pdf uploaded. | 21 April 2020 04:34 CEST | Updated version of record | https://www.mdpi.com/2226-4310/7/4/48/pdf |
| article xml uploaded. | 21 April 2020 04:34 CEST | Update | https://www.mdpi.com/2226-4310/7/4/48/xml |
| article xml file uploaded | 21 April 2020 04:34 CEST | Update | N/A |
| article pdf uploaded. | 19 April 2020 14:40 CEST | Version of Record | https://www.mdpi.com/2226-4310/7/4/48/pdf-vor |
| article xml file uploaded | 19 April 2020 14:40 CEST | Original file | N/A |
