| article html file updated | 19 August 2026 18:38 CEST | Update | https://www.mdpi.com/1999-4907/12/6/809 |
| article html file updated | 2 September 2025 11:33 CEST | Update | N/A |
| article html file updated | 27 July 2022 00:57 CEST | Update | N/A |
| article html file updated | 23 June 2021 13:01 CEST | Original file | N/A |
| article pdf uploaded. | 23 June 2021 12:59 CEST | Updated version of record | https://www.mdpi.com/1999-4907/12/6/809/pdf |
| article xml uploaded. | 23 June 2021 12:59 CEST | Update | https://www.mdpi.com/1999-4907/12/6/809/xml |
| article xml file uploaded | 23 June 2021 12:59 CEST | Original file | N/A |
| article pdf uploaded. | 19 June 2021 06:44 CEST | Updated version of record | https://www.mdpi.com/1999-4907/12/6/809/pdf-vor |
| article pdf uploaded. | 19 June 2021 06:08 CEST | Version of Record | https://www.mdpi.com/1999-4907/12/6/809/pdf-vor |
