| article html file updated | 12 October 2021 14:11 CEST | Original file | https://www.mdpi.com/2076-0752/10/4/69 |
| article pdf uploaded. | 12 October 2021 14:09 CEST | Version of Record | https://www.mdpi.com/2076-0752/10/4/69/pdf |
| article xml uploaded. | 12 October 2021 14:09 CEST | Update | https://www.mdpi.com/2076-0752/10/4/69/xml |
| article xml file uploaded | 12 October 2021 14:09 CEST | Original file | - |
