| article html file updated | 18 April 2022 07:49 CEST | Update | https://www.mdpi.com/2226-4310/9/4/203 |
| article xml uploaded. | 18 April 2022 07:47 CEST | Update | https://www.mdpi.com/2226-4310/9/4/203/xml |
| article xml file uploaded | 18 April 2022 07:47 CEST | Update | - |
| article html file updated | 12 April 2022 08:52 CEST | Original file | - |
| article pdf uploaded. | 12 April 2022 08:50 CEST | Updated version of record | https://www.mdpi.com/2226-4310/9/4/203/pdf |
| article xml file uploaded | 12 April 2022 08:50 CEST | Original file | - |
| article pdf uploaded. | 9 April 2022 09:25 CEST | Version of Record | https://www.mdpi.com/2226-4310/9/4/203/pdf-vor |
