| article html file updated | 21 December 2020 07:34 CET | Update | https://www.mdpi.com/2226-471X/5/4/73 |
| article pdf uploaded. | 21 December 2020 07:33 CET | Updated version of record | https://www.mdpi.com/2226-471X/5/4/73/pdf |
| article xml uploaded. | 21 December 2020 07:33 CET | Update | https://www.mdpi.com/2226-471X/5/4/73/xml |
| article xml file uploaded | 21 December 2020 07:33 CET | Update | - |
| article html file updated | 21 December 2020 06:40 CET | Original file | - |
| article pdf uploaded. | 21 December 2020 06:39 CET | Version of Record | - |
| article xml uploaded. | 21 December 2020 06:39 CET | Update | - |
| article xml file uploaded | 21 December 2020 06:39 CET | Original file | - |
