| article html file updated | 21 June 2021 10:00 CEST | Update | https://www.mdpi.com/2075-1702/9/6/122 |
| article html file updated | 21 June 2021 06:27 CEST | Original file | N/A |
| article pdf uploaded. | 21 June 2021 06:26 CEST | Updated version of record | https://www.mdpi.com/2075-1702/9/6/122/pdf |
| article xml uploaded. | 21 June 2021 06:26 CEST | Update | https://www.mdpi.com/2075-1702/9/6/122/xml |
| article xml file uploaded | 21 June 2021 06:26 CEST | Original file | N/A |
| article pdf uploaded. | 18 June 2021 12:23 CEST | Version of Record | https://www.mdpi.com/2075-1702/9/6/122/pdf-vor |
