| article html file updated | 3 August 2021 03:57 CEST | Update | https://www.mdpi.com/1999-4915/13/4/549 |
| article html file updated | 25 March 2021 13:24 CET | Original file | - |
| article pdf uploaded. | 25 March 2021 13:23 CET | Version of Record | https://www.mdpi.com/1999-4915/13/4/549/pdf |
| article xml uploaded. | 25 March 2021 13:23 CET | Update | https://www.mdpi.com/1999-4915/13/4/549/xml |
| article xml file uploaded | 25 March 2021 13:23 CET | Original file | - |
