| article html file updated | 23 February 2021 10:14 CET | Update | https://www.mdpi.com/2077-1312/9/2/215 |
| article html file updated | 22 February 2021 14:03 CET | Original file | - |
| article pdf uploaded. | 22 February 2021 14:01 CET | Updated version of record | https://www.mdpi.com/2077-1312/9/2/215/pdf |
| article xml uploaded. | 22 February 2021 14:01 CET | Update | https://www.mdpi.com/2077-1312/9/2/215/xml |
| article xml file uploaded | 22 February 2021 14:01 CET | Original file | - |
| article pdf uploaded. | 18 February 2021 14:43 CET | Version of Record | https://www.mdpi.com/2077-1312/9/2/215/pdf-vor |
