| article html file updated | 1 September 2025 08:28 CEST | Update | https://www.mdpi.com/1999-4907/11/9/990 |
| article html file updated | 22 July 2022 07:12 CEST | Update | - |
| article html file updated | 7 October 2020 14:01 CEST | Update | - |
| article html file updated | 17 September 2020 05:41 CEST | Update | - |
| article pdf uploaded. | 17 September 2020 05:39 CEST | Updated version of record | https://www.mdpi.com/1999-4907/11/9/990/pdf |
| article xml uploaded. | 17 September 2020 05:39 CEST | Update | https://www.mdpi.com/1999-4907/11/9/990/xml |
| article xml file uploaded | 17 September 2020 05:39 CEST | Update | - |
| article html file updated | 16 September 2020 08:10 CEST | Update | - |
| article pdf uploaded. | 16 September 2020 08:08 CEST | Updated version of record | https://www.mdpi.com/1999-4907/11/9/990/pdf-vor |
| article xml uploaded. | 16 September 2020 08:08 CEST | Update | - |
| article xml file uploaded | 16 September 2020 08:08 CEST | Update | - |
| article html file updated | 15 September 2020 10:22 CEST | Original file | - |
| article pdf uploaded. | 15 September 2020 10:20 CEST | Version of Record | https://www.mdpi.com/1999-4907/11/9/990/pdf-vor |
| article xml uploaded. | 15 September 2020 10:20 CEST | Update | - |
| article xml file uploaded | 15 September 2020 10:20 CEST | Original file | - |
