| article html file updated | 31 August 2025 16:27 CEST | Update | https://www.mdpi.com/1424-8220/20/7/2021 |
| article html file updated | 21 July 2022 00:56 CEST | Update | N/A |
| article html file updated | 5 April 2020 14:55 CEST | Original file | N/A |
| article pdf uploaded. | 5 April 2020 14:53 CEST | Updated version of record | https://www.mdpi.com/1424-8220/20/7/2021/pdf |
| article xml uploaded. | 5 April 2020 14:53 CEST | Update | https://www.mdpi.com/1424-8220/20/7/2021/xml |
| article xml file uploaded | 5 April 2020 14:53 CEST | Update | N/A |
| article pdf uploaded. | 3 April 2020 16:42 CEST | Version of Record | https://www.mdpi.com/1424-8220/20/7/2021/pdf-vor |
| article xml file uploaded | 3 April 2020 16:42 CEST | Original file | N/A |
