| article html file updated | 8 December 2020 11:08 CET | Original file | https://www.mdpi.com/2036-7481/11/2/6 |
| article pdf uploaded. | 8 December 2020 11:07 CET | Version of Record | https://www.mdpi.com/2036-7481/11/2/6/pdf |
| article xml uploaded. | 8 December 2020 11:07 CET | Update | https://www.mdpi.com/2036-7481/11/2/6/xml |
| article xml file uploaded | 8 December 2020 11:07 CET | Original file | - |
