| article html file updated | 7 September 2025 06:00 CEST | Update | https://www.mdpi.com/1999-4923/13/12/1991 |
| article html file updated | 30 July 2022 18:21 CEST | Update | - |
| article html file updated | 25 November 2021 03:55 CET | Original file | - |
| article pdf uploaded. | 25 November 2021 03:53 CET | Updated version of record | https://www.mdpi.com/1999-4923/13/12/1991/pdf |
| article xml uploaded. | 25 November 2021 03:53 CET | Update | https://www.mdpi.com/1999-4923/13/12/1991/xml |
| article xml file uploaded | 25 November 2021 03:53 CET | Original file | - |
| article pdf uploaded. | 23 November 2021 17:13 CET | Version of Record | https://www.mdpi.com/1999-4923/13/12/1991/pdf-vor |
