| article html file updated | 2 April 2020 13:36 CEST | Update | https://www.mdpi.com/2297-8747/25/1/6 |
| article xml uploaded. | 2 April 2020 07:53 CEST | Update | https://www.mdpi.com/2297-8747/25/1/6/xml |
| article pdf uploaded. | 2 April 2020 07:53 CEST | Updated version of record | https://www.mdpi.com/2297-8747/25/1/6/pdf |
| article html file updated | 1 April 2020 22:50 CEST | Update | - |
| article html file updated | 15 February 2020 03:39 CET | Update | - |
| article html file updated | 31 January 2020 08:43 CET | Original file | - |
| article xml uploaded. | 31 January 2020 08:42 CET | Original file | - |
| article pdf uploaded. | 16 January 2020 15:57 CET | Version of Record | https://www.mdpi.com/2297-8747/25/1/6/pdf-vor |
