| article html file updated | 2 November 2021 06:26 CET | Update | https://www.mdpi.com/2227-9709/8/4/72 |
| article pdf uploaded. | 2 November 2021 06:24 CET | Updated version of record | https://www.mdpi.com/2227-9709/8/4/72/pdf |
| article xml uploaded. | 2 November 2021 06:24 CET | Update | https://www.mdpi.com/2227-9709/8/4/72/xml |
| article xml file uploaded | 2 November 2021 06:24 CET | Update | - |
| article html file updated | 28 October 2021 12:02 CEST | Original file | - |
| article pdf uploaded. | 28 October 2021 12:00 CEST | Version of Record | https://www.mdpi.com/2227-9709/8/4/72/pdf-vor |
| article xml uploaded. | 28 October 2021 12:00 CEST | Update | - |
| article xml file uploaded | 28 October 2021 12:00 CEST | Original file | - |
