| article html file updated | 8 February 2021 12:11 CET | Original file | https://www.mdpi.com/2227-7102/11/2/65 |
| article pdf uploaded. | 8 February 2021 12:10 CET | Version of Record | https://www.mdpi.com/2227-7102/11/2/65/pdf |
| article xml uploaded. | 8 February 2021 12:10 CET | Update | https://www.mdpi.com/2227-7102/11/2/65/xml |
| article xml file uploaded | 8 February 2021 12:10 CET | Original file | - |
