| article html file updated | 27 April 2020 15:23 CEST | Original file | https://www.mdpi.com/2227-7390/8/4/630 |
| article pdf uploaded. | 27 April 2020 15:21 CEST | Updated version of record | https://www.mdpi.com/2227-7390/8/4/630/pdf |
| article xml uploaded. | 27 April 2020 15:21 CEST | Update | https://www.mdpi.com/2227-7390/8/4/630/xml |
| article xml file uploaded | 27 April 2020 15:21 CEST | Update | - |
| article pdf uploaded. | 19 April 2020 13:53 CEST | Version of Record | https://www.mdpi.com/2227-7390/8/4/630/pdf-vor |
| article xml file uploaded | 19 April 2020 13:53 CEST | Original file | - |
