| article html file updated | 4 August 2021 14:34 CEST | Update | https://www.mdpi.com/2226-4310/8/4/104 |
| article html file updated | 11 April 2021 13:37 CEST | Update | N/A |
| article html file updated | 7 April 2021 15:26 CEST | Original file | N/A |
| article pdf uploaded. | 7 April 2021 15:25 CEST | Version of Record | https://www.mdpi.com/2226-4310/8/4/104/pdf |
| article xml uploaded. | 7 April 2021 15:25 CEST | Update | https://www.mdpi.com/2226-4310/8/4/104/xml |
| article xml file uploaded | 7 April 2021 15:25 CEST | Original file | N/A |
