| article html file updated | 28 July 2021 15:37 CEST | Original file | https://www.mdpi.com/2571-9408/4/3/81 |
| article pdf uploaded. | 28 July 2021 15:35 CEST | Version of Record | https://www.mdpi.com/2571-9408/4/3/81/pdf |
| article xml uploaded. | 28 July 2021 15:35 CEST | Update | https://www.mdpi.com/2571-9408/4/3/81/xml |
| article xml file uploaded | 28 July 2021 15:35 CEST | Original file | N/A |
