| article html file updated | 6 January 2021 16:51 CET | Original file | https://www.mdpi.com/2223-7747/10/1/108 |
| article pdf uploaded. | 6 January 2021 16:49 CET | Version of Record | https://www.mdpi.com/2223-7747/10/1/108/pdf |
| article xml uploaded. | 6 January 2021 16:49 CET | Update | https://www.mdpi.com/2223-7747/10/1/108/xml |
| article xml file uploaded | 6 January 2021 16:49 CET | Original file | - |
