| article html file updated | 31 August 2025 16:00 CEST | Update | https://www.mdpi.com/2223-7747/9/4/426 |
| article html file updated | 21 July 2022 00:29 CEST | Update | N/A |
| article html file updated | 9 May 2020 04:25 CEST | Update | N/A |
| article html file updated | 31 March 2020 13:58 CEST | Original file | N/A |
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| article xml uploaded. | 31 March 2020 13:55 CEST | Update | https://www.mdpi.com/2223-7747/9/4/426/xml |
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