| article html file updated | 14 February 2020 02:17 CET | Update | https://www.mdpi.com/2297-8747/24/4/91 |
| article html file updated | 1 January 2020 02:12 CET | Update | - |
| article html file updated | 28 October 2019 02:59 CET | Original file | - |
| article pdf uploaded. | 28 October 2019 02:58 CET | Updated version of record | https://www.mdpi.com/2297-8747/24/4/91/pdf |
| article xml uploaded. | 28 October 2019 02:58 CET | Update | https://www.mdpi.com/2297-8747/24/4/91/xml |
| article xml file uploaded | 28 October 2019 02:58 CET | Update | - |
| article pdf uploaded. | 19 October 2019 09:55 CEST | Version of Record | https://www.mdpi.com/2297-8747/24/4/91/pdf-vor |
| article xml file uploaded | 19 October 2019 09:55 CEST | Original file | - |
