| article html file updated | 1 September 2025 20:21 CEST | Update | https://www.mdpi.com/2227-9032/9/2/138 |
| article html file updated | 24 July 2022 09:49 CEST | Update | - |
| article html file updated | 8 February 2021 05:18 CET | Original file | - |
| article xml uploaded. | 8 February 2021 05:16 CET | Update | https://www.mdpi.com/2227-9032/9/2/138/xml |
| article xml file uploaded | 8 February 2021 05:16 CET | Original file | - |
| article pdf uploaded. | 2 February 2021 03:25 CET | Updated version of record | https://www.mdpi.com/2227-9032/9/2/138/pdf |
| article pdf uploaded. | 1 February 2021 11:37 CET | Version of Record | https://www.mdpi.com/2227-9032/9/2/138/pdf-vor |
