| article html file updated | 18 June 2021 10:05 CEST | Update | https://www.mdpi.com/1424-8220/21/12/4172 |
| article html file updated | 18 June 2021 05:46 CEST | Original file | - |
| article pdf uploaded. | 18 June 2021 05:45 CEST | Updated version of record | https://www.mdpi.com/1424-8220/21/12/4172/pdf |
| article xml uploaded. | 18 June 2021 05:45 CEST | Update | https://www.mdpi.com/1424-8220/21/12/4172/xml |
| article xml file uploaded | 18 June 2021 05:45 CEST | Original file | - |
| article pdf uploaded. | 17 June 2021 17:41 CEST | Version of Record | https://www.mdpi.com/1424-8220/21/12/4172/pdf-vor |
