| article html file updated | 30 July 2022 04:11 CEST | Update | https://www.mdpi.com/1911-8074/14/9/421 |
| article html file updated | 23 September 2021 09:02 CEST | Update | - |
| article pdf uploaded. | 23 September 2021 09:01 CEST | Updated version of record | https://www.mdpi.com/1911-8074/14/9/421/pdf |
| article xml uploaded. | 23 September 2021 09:01 CEST | Update | https://www.mdpi.com/1911-8074/14/9/421/xml |
| article xml file uploaded | 23 September 2021 09:01 CEST | Update | - |
| article html file updated | 3 September 2021 13:53 CEST | Original file | - |
| article pdf uploaded. | 3 September 2021 13:51 CEST | Version of Record | https://www.mdpi.com/1911-8074/14/9/421/pdf-vor |
| article xml uploaded. | 3 September 2021 13:51 CEST | Update | - |
| article xml file uploaded | 3 September 2021 13:51 CEST | Original file | - |
