| article html file updated | 19 March 2021 06:39 CET | Original file | https://www.mdpi.com/2412-3811/6/3/46 |
| article pdf uploaded. | 19 March 2021 06:37 CET | Updated version of record | https://www.mdpi.com/2412-3811/6/3/46/pdf |
| article xml uploaded. | 19 March 2021 06:37 CET | Update | https://www.mdpi.com/2412-3811/6/3/46/xml |
| article xml file uploaded | 19 March 2021 06:37 CET | Original file | - |
| article pdf uploaded. | 15 March 2021 14:41 CET | Version of Record | https://www.mdpi.com/2412-3811/6/3/46/pdf-vor |
