| article html file updated | 31 August 2025 16:25 CEST | Update | https://www.mdpi.com/2223-7747/9/4/450 |
| article html file updated | 21 July 2022 00:55 CEST | Update | - |
| article html file updated | 9 May 2020 04:27 CEST | Update | - |
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| article pdf uploaded. | 3 April 2020 15:00 CEST | Updated version of record | https://www.mdpi.com/2223-7747/9/4/450/pdf |
| article xml uploaded. | 3 April 2020 15:00 CEST | Update | https://www.mdpi.com/2223-7747/9/4/450/xml |
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| article xml file uploaded | 3 April 2020 14:37 CEST | Original file | - |
