| article html file updated | 30 July 2022 17:46 CEST | Update | https://www.mdpi.com/2227-9709/8/4/81 |
| article html file updated | 20 November 2021 10:46 CET | Original file | N/A |
| article pdf uploaded. | 20 November 2021 10:45 CET | Version of Record | https://www.mdpi.com/2227-9709/8/4/81/pdf |
| article xml uploaded. | 20 November 2021 10:45 CET | Update | https://www.mdpi.com/2227-9709/8/4/81/xml |
| article xml file uploaded | 20 November 2021 10:45 CET | Original file | N/A |
