| article html file updated | 1 September 2025 12:33 CEST | Update | https://www.mdpi.com/2226-471X/5/4/50 |
| article html file updated | 22 July 2022 23:33 CEST | Update | - |
| article html file updated | 5 November 2020 04:33 CET | Update | - |
| article pdf uploaded. | 5 November 2020 04:31 CET | Updated version of record | https://www.mdpi.com/2226-471X/5/4/50/pdf |
| article xml uploaded. | 5 November 2020 04:31 CET | Update | https://www.mdpi.com/2226-471X/5/4/50/xml |
| article xml file uploaded | 5 November 2020 04:31 CET | Update | - |
| article html file updated | 2 November 2020 13:34 CET | Original file | - |
| article pdf uploaded. | 2 November 2020 13:32 CET | Version of Record | https://www.mdpi.com/2226-471X/5/4/50/pdf-vor |
| article xml uploaded. | 2 November 2020 13:32 CET | Update | - |
| article xml file uploaded | 2 November 2020 13:32 CET | Original file | - |
