| article html file updated | 24 December 2025 19:03 CET | Update | https://www.mdpi.com/2223-7747/9/6/688 |
| article html file updated | 31 August 2025 21:54 CEST | Update | - |
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| article html file updated | 21 July 2022 06:18 CEST | Update | - |
| article html file updated | 4 June 2020 10:53 CEST | Original file | - |
| article pdf uploaded. | 4 June 2020 10:52 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/6/688/pdf |
| article xml uploaded. | 4 June 2020 10:52 CEST | Update | https://www.mdpi.com/2223-7747/9/6/688/xml |
| article xml file uploaded | 4 June 2020 10:52 CEST | Original file | - |
| article pdf uploaded. | 28 May 2020 15:10 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/6/688/pdf-vor |
