| article html file updated | 1 September 2025 11:57 CEST | Update | https://www.mdpi.com/2218-6581/9/4/89 |
| article html file updated | 22 July 2022 22:35 CEST | Update | - |
| article html file updated | 5 November 2020 09:27 CET | Original file | - |
| article pdf uploaded. | 5 November 2020 09:26 CET | Updated version of record | https://www.mdpi.com/2218-6581/9/4/89/pdf |
| article xml uploaded. | 5 November 2020 09:26 CET | Update | https://www.mdpi.com/2218-6581/9/4/89/xml |
| article xml file uploaded | 5 November 2020 09:26 CET | Original file | - |
| article pdf uploaded. | 26 October 2020 15:45 CET | Version of Record | https://www.mdpi.com/2218-6581/9/4/89/pdf-vor |
