| article html file updated | 17 December 2020 12:17 CET | Original file | https://www.mdpi.com/2411-5134/5/4/62 |
| article pdf uploaded. | 17 December 2020 12:15 CET | Updated version of record | https://www.mdpi.com/2411-5134/5/4/62/pdf |
| article xml uploaded. | 17 December 2020 12:15 CET | Update | https://www.mdpi.com/2411-5134/5/4/62/xml |
| article xml file uploaded | 17 December 2020 12:14 CET | Original file | - |
| article pdf uploaded. | 16 December 2020 15:06 CET | Version of Record | https://www.mdpi.com/2411-5134/5/4/62/pdf-vor |
