| article html file updated | 1 September 2025 12:48 CEST | Update | https://www.mdpi.com/2218-1997/6/11/204 |
| article html file updated | 22 July 2022 23:59 CEST | Update | - |
| article html file updated | 27 November 2020 06:57 CET | Update | - |
| article html file updated | 5 November 2020 15:40 CET | Original file | - |
| article pdf uploaded. | 5 November 2020 15:38 CET | Version of Record | https://www.mdpi.com/2218-1997/6/11/204/pdf |
| article xml uploaded. | 5 November 2020 15:38 CET | Update | https://www.mdpi.com/2218-1997/6/11/204/xml |
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