| article html file updated | 8 May 2020 13:30 CEST | Update | https://www.mdpi.com/1999-4923/12/4/318 |
| article html file updated | 7 April 2020 15:33 CEST | Original file | - |
| article pdf uploaded. | 7 April 2020 15:32 CEST | Updated version of record | https://www.mdpi.com/1999-4923/12/4/318/pdf |
| article xml uploaded. | 7 April 2020 15:32 CEST | Update | https://www.mdpi.com/1999-4923/12/4/318/xml |
| article xml file uploaded | 7 April 2020 15:32 CEST | Update | - |
| article pdf uploaded. | 2 April 2020 14:16 CEST | Version of Record | https://www.mdpi.com/1999-4923/12/4/318/pdf-vor |
| article xml file uploaded | 2 April 2020 14:16 CEST | Original file | - |
