| article html file updated | 28 October 2020 10:38 CET | Original file | https://www.mdpi.com/2571-9408/3/4/69 |
| article pdf uploaded. | 28 October 2020 10:37 CET | Version of Record | https://www.mdpi.com/2571-9408/3/4/69/pdf |
| article xml uploaded. | 28 October 2020 10:37 CET | Update | https://www.mdpi.com/2571-9408/3/4/69/xml |
| article xml file uploaded | 28 October 2020 10:37 CET | Original file | - |
