| article html file updated | 22 January 2021 08:10 CET | Original file | https://www.mdpi.com/2308-3425/8/2/7 |
| article pdf uploaded. | 22 January 2021 08:09 CET | Version of Record | https://www.mdpi.com/2308-3425/8/2/7/pdf |
| article xml uploaded. | 22 January 2021 08:09 CET | Update | https://www.mdpi.com/2308-3425/8/2/7/xml |
| article xml file uploaded | 22 January 2021 08:09 CET | Original file | N/A |
