| article html file updated | 10 April 2021 06:56 CEST | Update | https://www.mdpi.com/2075-1702/9/4/73 |
| article html file updated | 29 March 2021 09:10 CEST | Original file | - |
| article pdf uploaded. | 29 March 2021 09:09 CEST | Version of Record | https://www.mdpi.com/2075-1702/9/4/73/pdf |
| article xml uploaded. | 29 March 2021 09:09 CEST | Update | https://www.mdpi.com/2075-1702/9/4/73/xml |
| article xml file uploaded | 29 March 2021 09:09 CEST | Original file | - |
