| article html file updated | 31 August 2025 16:34 CEST | Update | https://www.mdpi.com/2223-7747/9/4/459 |
| article html file updated | 21 July 2022 01:03 CEST | Update | - |
| article html file updated | 9 May 2020 04:28 CEST | Update | - |
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| article pdf uploaded. | 8 April 2020 03:36 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/459/pdf |
| article xml uploaded. | 8 April 2020 03:36 CEST | Update | https://www.mdpi.com/2223-7747/9/4/459/xml |
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| article pdf uploaded. | 5 April 2020 15:08 CEST | Version of Record | https://www.mdpi.com/2223-7747/9/4/459/pdf-vor |
| article xml file uploaded | 5 April 2020 15:08 CEST | Original file | - |
