| article html file updated | 31 August 2025 19:09 CEST | Update | https://www.mdpi.com/1996-1073/13/9/2159 |
| article html file updated | 21 July 2022 03:36 CEST | Update | - |
| article html file updated | 8 October 2020 23:19 CEST | Update | - |
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| article xml uploaded. | 11 May 2020 17:08 CEST | Update | https://www.mdpi.com/1996-1073/13/9/2159/xml |
| article xml file uploaded | 11 May 2020 17:08 CEST | Update | - |
| article pdf uploaded. | 1 May 2020 10:38 CEST | Version of Record | https://www.mdpi.com/1996-1073/13/9/2159/pdf-vor |
| article xml file uploaded | 1 May 2020 10:38 CEST | Original file | - |
