| article html file updated | 2 September 2025 04:13 CEST | Update | https://www.mdpi.com/1999-4907/12/4/506 |
| article html file updated | 25 July 2022 12:44 CEST | Update | - |
| article html file updated | 19 April 2021 10:41 CEST | Update | - |
| article pdf uploaded. | 19 April 2021 10:39 CEST | Updated version of record | https://www.mdpi.com/1999-4907/12/4/506/pdf |
| article xml uploaded. | 19 April 2021 10:39 CEST | Update | https://www.mdpi.com/1999-4907/12/4/506/xml |
| article xml file uploaded | 19 April 2021 10:39 CEST | Update | - |
| article html file updated | 17 April 2021 15:18 CEST | Original file | - |
| article pdf uploaded. | 17 April 2021 15:17 CEST | Version of Record | https://www.mdpi.com/1999-4907/12/4/506/pdf-vor |
| article xml file uploaded | 17 April 2021 15:17 CEST | Original file | - |
