| article html file updated | 3 August 2021 18:10 CEST | Update | https://www.mdpi.com/2226-4787/9/2/73 |
| article html file updated | 10 April 2021 14:41 CEST | Update | - |
| article html file updated | 31 March 2021 08:37 CEST | Original file | - |
| article pdf uploaded. | 31 March 2021 08:35 CEST | Version of Record | https://www.mdpi.com/2226-4787/9/2/73/pdf |
| article xml uploaded. | 31 March 2021 08:35 CEST | Update | https://www.mdpi.com/2226-4787/9/2/73/xml |
| article xml file uploaded | 31 March 2021 08:35 CEST | Original file | - |
