| article html file updated | 1 September 2025 10:30 CEST | Update | https://www.mdpi.com/2218-1997/6/10/172 |
| article html file updated | 22 July 2022 10:14 CEST | Update | - |
| article html file updated | 21 October 2020 06:32 CEST | Original file | - |
| article pdf uploaded. | 21 October 2020 06:30 CEST | Updated version of record | https://www.mdpi.com/2218-1997/6/10/172/pdf |
| article xml uploaded. | 21 October 2020 06:30 CEST | Update | https://www.mdpi.com/2218-1997/6/10/172/xml |
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| article pdf uploaded. | 11 October 2020 08:02 CEST | Version of Record | https://www.mdpi.com/2218-1997/6/10/172/pdf-vor |
