| article html file updated | 1 September 2025 04:40 CEST | Update | https://www.mdpi.com/2218-1997/6/8/108 |
| article html file updated | 22 July 2022 02:11 CEST | Update | - |
| article html file updated | 6 August 2020 05:24 CEST | Original file | - |
| article pdf uploaded. | 6 August 2020 05:23 CEST | Updated version of record | https://www.mdpi.com/2218-1997/6/8/108/pdf |
| article xml uploaded. | 6 August 2020 05:23 CEST | Update | https://www.mdpi.com/2218-1997/6/8/108/xml |
| article xml file uploaded | 6 August 2020 05:23 CEST | Original file | - |
| article pdf uploaded. | 2 August 2020 08:52 CEST | Version of Record | https://www.mdpi.com/2218-1997/6/8/108/pdf-vor |
