| article html file updated | 2 June 2021 10:54 CEST | Original file | https://www.mdpi.com/2673-4362/2/2/20 |
| article pdf uploaded. | 2 June 2021 10:52 CEST | Version of Record | https://www.mdpi.com/2673-4362/2/2/20/pdf |
| article xml uploaded. | 2 June 2021 10:52 CEST | Update | https://www.mdpi.com/2673-4362/2/2/20/xml |
| article xml file uploaded | 2 June 2021 10:52 CEST | Original file | N/A |
