| article html file updated | 5 January 2021 04:01 CET | Update | https://www.mdpi.com/2313-4321/6/1/2 |
| article pdf uploaded. | 5 January 2021 04:00 CET | Updated version of record | https://www.mdpi.com/2313-4321/6/1/2/pdf |
| article xml uploaded. | 5 January 2021 04:00 CET | Update | https://www.mdpi.com/2313-4321/6/1/2/xml |
| article xml file uploaded | 5 January 2021 04:00 CET | Update | - |
| article html file updated | 2 January 2021 08:07 CET | Original file | - |
| article pdf uploaded. | 2 January 2021 08:06 CET | Version of Record | https://www.mdpi.com/2313-4321/6/1/2/pdf-vor |
| article xml file uploaded | 2 January 2021 08:06 CET | Original file | - |
