| article html file updated | 3 August 2021 10:20 CEST | Update | https://www.mdpi.com/2411-5134/6/2/23 |
| article html file updated | 10 April 2021 05:16 CEST | Update | - |
| article html file updated | 29 March 2021 05:18 CEST | Original file | - |
| article pdf uploaded. | 29 March 2021 05:17 CEST | Updated version of record | https://www.mdpi.com/2411-5134/6/2/23/pdf |
| article xml uploaded. | 29 March 2021 05:17 CEST | Update | https://www.mdpi.com/2411-5134/6/2/23/xml |
| article xml file uploaded | 29 March 2021 05:17 CEST | Original file | - |
| article pdf uploaded. | 27 March 2021 16:25 CET | Version of Record | https://www.mdpi.com/2411-5134/6/2/23/pdf-vor |
