| article html file updated | 4 September 2025 21:01 CEST | Update | https://www.mdpi.com/1996-1073/16/4/2021 |
| article html file updated | 9 March 2023 20:53 CET | Update | - |
| article html file updated | 20 February 2023 07:34 CET | Original file | - |
| article pdf uploaded. | 20 February 2023 07:33 CET | Updated version of record | https://www.mdpi.com/1996-1073/16/4/2021/pdf |
| article xml uploaded. | 20 February 2023 07:33 CET | Update | https://www.mdpi.com/1996-1073/16/4/2021/xml |
| article xml file uploaded | 20 February 2023 07:33 CET | Original file | - |
| article pdf uploaded. | 17 February 2023 15:56 CET | Version of Record | https://www.mdpi.com/1996-1073/16/4/2021/pdf-vor |
