| article html file updated | 24 May 2021 11:12 CEST | Original file | https://www.mdpi.com/2077-1312/9/6/564 |
| article pdf uploaded. | 24 May 2021 11:11 CEST | Version of Record | https://www.mdpi.com/2077-1312/9/6/564/pdf |
| article xml uploaded. | 24 May 2021 11:11 CEST | Update | https://www.mdpi.com/2077-1312/9/6/564/xml |
| article xml file uploaded | 24 May 2021 11:11 CEST | Original file | - |
