| article html file updated | 1 September 2025 12:31 CEST | Update | https://www.mdpi.com/2227-9709/7/4/49 |
| article html file updated | 22 July 2022 23:29 CEST | Update | - |
| article html file updated | 2 November 2020 02:44 CET | Update | - |
| article pdf uploaded. | 2 November 2020 02:42 CET | Updated version of record | https://www.mdpi.com/2227-9709/7/4/49/pdf |
| article xml uploaded. | 2 November 2020 02:42 CET | Update | https://www.mdpi.com/2227-9709/7/4/49/xml |
| article xml file uploaded | 2 November 2020 02:42 CET | Update | - |
| article html file updated | 2 November 2020 02:31 CET | Update | - |
| article pdf uploaded. | 2 November 2020 02:29 CET | Updated version of record | https://www.mdpi.com/2227-9709/7/4/49/pdf-vor |
| article xml uploaded. | 2 November 2020 02:29 CET | Update | - |
| article xml file uploaded | 2 November 2020 02:29 CET | Update | - |
| article html file updated | 1 November 2020 12:22 CET | Original file | - |
| article pdf uploaded. | 1 November 2020 12:21 CET | Version of Record | https://www.mdpi.com/2227-9709/7/4/49/pdf-vor |
| article xml uploaded. | 1 November 2020 12:21 CET | Update | - |
| article xml file uploaded | 1 November 2020 12:21 CET | Original file | - |
