| article html file updated | 1 September 2025 12:44 CEST | Update | https://new.mdpi.com/2227-9032/8/4/459 |
| article html file updated | 22 July 2022 23:51 CEST | Update | - |
| article html file updated | 5 November 2020 05:37 CET | Original file | - |
| article pdf uploaded. | 5 November 2020 05:36 CET | Updated version of record | https://new.mdpi.com/2227-9032/8/4/459/pdf |
| article xml uploaded. | 5 November 2020 05:35 CET | Update | https://new.mdpi.com/2227-9032/8/4/459/xml |
| article xml file uploaded | 5 November 2020 05:35 CET | Original file | - |
| article pdf uploaded. | 4 November 2020 15:55 CET | Version of Record | https://new.mdpi.com/2227-9032/8/4/459/pdf-vor |
